
Lock Every Door (2019) Parents Guide: Is the book OK for kids?
Age Rating, Sex, Violence & Language
"Lock Every Door" follows Jules, a down-on-her luck young woman who takes a questionable job apartment sitting in one of the oldest, most glamorous and certainly quite mysterious buildings in New York City. There are many rules to the job: no visitors, no nights spent away from the apartment and no disturbing other residents. What seems easy money at first becomes daunting as an isolated Jules searches for answers in another tenant's disappearance.
Adult • 2019 • 300 pages • Grade 10+
Lock Every Door is a high-tension psychological thriller that earns its mature rating through a disturbing central premise involving medical horror and forced organ harvesting. While it contains some moderate profanity and peripheral sexual references, the primary concern for parents is the intense peril and the graphic nature of the final reveal—in which the protagonist discovers she has been surgically violated against her will. This… Sign up for the full guide
Is Lock Every Door appropriate for kids?
Lock Every Door is a high-tension psychological thriller that earns its mature rating through a disturbing central premise involving medical horror and forced organ harvesting. While it contains some moderate profanity and peripheral sexual references, the primary concern for… Read more — free account
Content severity in Lock Every Door
What happens in Lock Every Door, moment by moment
- p. 12 🔥 Mature Themes 3/10
- p. 28 🍷 Substances 2/10
- p. 45 💬 Language 4/10
Sex and nudity in Lock Every Door
Sexual content is relatively light and focused on dialogue or past relationships rather than explicit physical acts. Jules frequently discusses her ex-boyfriend, Ethan, and his infidelity, which serves as the catalyst for her being broke and needing the apartment-sitting job. There is some minor flirtatious tension between Jules and Nick, the handsome doctor living in the building, including a scene where he checks a minor injury on her. Later, Jules discovers her sister had a past relationship with a man…
Read more — free accountViolence and gore in Lock Every Door
Violence is moderate for much of the book but becomes graphic and clinical during the climax. Themes of kidnapping and non-consensual surgery are central; characters disappear, and the protagonist is eventually drugged and surgically operated on while unconscious. Before the medical horror reveal, the violence consists of Jules being stalked, hearing screams, and suffering physical injuries like a sprained ankle or a concussion from a car strike. The final chapters involve a chaotic escape, a fire, and the sight…
Read more — free accountLanguage in Lock Every Door
Strong language is used occasionally throughout the narrative, including the f-word, 'shit,' 'hell,' and 'damn.' The profanity is generally used to emphasize fear or frustration as Jules becomes increasingly trapped within the Bartholomew. Dialogue between Jules and her friend Dylan often includes casual swearing typical of young adults in high-stress situations. There are roughly a dozen instances of the f-word, usually appearing during the most intense chase sequences or moments of shock. The frequency is…
Read more — free accountDrugs, alcohol, and smoking in Lock Every Door
Alcohol consumption occurs during social interactions in the building, particularly wine served at a dinner party hosted by the wealthy Beaven family. Jules uses a small amount of alcohol to steady her nerves, though she is wary of the building's rules. A significant plot point involves the protagonist being drugged or sedated without her consent to facilitate illegal medical procedures. The misuse of medical sedatives like propofol or midazolam is central to the antagonists' methods of control. There are no…
Read more — free accountMature themes in Lock Every Door
Major themes include the exploitation of the poor by the wealthy, the loss of bodily autonomy, grief over lost family members, and the terrifying realization that institutions designed to help (hospitals/doctors) can be corrupt.
Frequently Asked Questions
Is Lock Every Door appropriate for kids?
Bontent's parent guide suggests Lock Every Door is best for ages 17+. Lock Every Door is a high-tension psychological thriller that earns its mature rating through a disturbing central premise involving medical horror and forced organ harvesting. While it contains some moderate profanity…
What age rating does Lock Every Door have?
Books don't carry official age ratings. Lock Every Door is shelved by its publisher as Adult, but that's a marketing category, not a content rating — Bontent's own review of what's actually on the page puts it at ages 17+.
What reading level is Lock Every Door?
Lock Every Door is 300 pages and its reading level is Grade 10+. Bontent recommends it for ages 17+.
What is Lock Every Door about?
Lock Every Door is a high-tension psychological thriller that earns its mature rating through a disturbing central premise involving medical horror and forced organ harvesting. While it contains some moderate profanity and peripheral sexual references, the primary concern for parents is the intense peril and the…
Is there sex or nudity in Lock Every Door?
Sexual content is relatively light and focused on dialogue or past relationships rather than explicit physical acts. Jules frequently discusses her ex-boyfriend, Ethan, and his infidelity, which serves as the catalyst for her being broke and needing the…
How violent is Lock Every Door?
Violence is moderate for much of the book but becomes graphic and clinical during the climax. Themes of kidnapping and non-consensual surgery are central; characters disappear, and the protagonist is eventually drugged and surgically operated on while…
Is the language in Lock Every Door appropriate for kids?
Strong language is used occasionally throughout the narrative, including the f-word, 'shit,' 'hell,' and 'damn.' The profanity is generally used to emphasize fear or frustration as Jules becomes increasingly trapped within the Bartholomew. Dialogue between…
Are drugs, alcohol, or smoking depicted in Lock Every Door?
Alcohol consumption occurs during social interactions in the building, particularly wine served at a dinner party hosted by the wealthy Beaven family. Jules uses a small amount of alcohol to steady her nerves, though she is wary of the building's rules. A…
What mature themes appear in Lock Every Door?
Major themes include the exploitation of the poor by the wealthy, the loss of bodily autonomy, grief over lost family members, and the terrifying realization that institutions designed to help (hospitals/doctors) can be corrupt.
Where can I read the full Lock Every Door parent guide?
Create a free Bontent account to unlock page-level notes, filter by your kids' ages, and save titles to your watchlist.
Books like Lock Every Door with similar intensity
Sign up to filter


















Less intense books for families
Sign up to filter


















More mystery books with parent guides
- Tall Oaks parent guide
- You Did Nothing Wrong parent guide
- THE ESCAPE GAME parent guide
- Unrivaled parent guide
- Deadly Scandal parent guide
- Blake Crouch's Dark Matter parent guide
- The Secret City parent guide
- Recursion (TV series) parent guide
- The Bands of Mourning (Mistborn, #6) parent guide
- The motion picture chums' outdoor exhibition, or, The film that solved a mystery parent guide
- The Count of Monte Cristo parent guide
- Ninth House (Alex Stern, #1) parent guide
Psychological Thriller books parents are checking
- Nine Lives parent guide
- This House Will Feed parent guide
- Wuthering Heights, Agnes Grey, and Poems parent guide
- Works (Poems / Wuthering Heights) parent guide
- Scottish lliterature parent guide
- The Shadow of the Wind (The Cemetery of Forgotten Books, #1) parent guide
- The Bad Beginning (A Series of Unfortunate Events #1) parent guide
- The Institute parent guide
More books by Riley Sager
More books with Bontent parent guides
- The Dictionary of Lost Words parent guide
- Tall Oaks parent guide
- Charged parent guide
- The Midnight Girls parent guide
- Blake Crouch's Dark Matter parent guide
- The Bookshop on Rosemary Lane parent guide
- Babel: Or the Necessity of Violence: An Arcane History of the Oxford Translators' Revolution parent guide
- The ballad of the hundred days parent guide
- Before They Are Hanged (The First Law, #2) parent guide
- The 48 Laws of Power parent guide
- The contemporary Negro novel parent guide
- Blood of Elves (The Witcher, #1) parent guide
- A century of the English novel parent guide
- The complete works of the Gawain-poet parent guide
- Harry Potter parent guide
- Harry Potter and the Sorcerer's Stone (Harry Potter, #1) parent guide