Join our newsletter and we’ll send dark romance new releases straight to your inbox! SIGN UP HERE
Controlled Substance
Okay fam, this one is unhinged in the best way. Sable Sinclair dropped us in a psych ward with a heavily sedated psychopath, an oblivious heroine whose “clean, factual” reports are literally the key to his cage, and a MFM why-choose with a bodyguard who keeps finding excuses to walk her to her car. It’s Jekyll & Hyde hero, institutional forced proximity, and full-send morally black MMC — the kind who was waiting for a woman exactly like her. If you’re here for serial killer romance where the villain stays villain and the “who did this to you” energy hits from both men, one-click immediately.
Book Description Genre, Tropes & Kinks Book Meta Book Reviews
Triggers
⚠️ DETAILED TRIGGERS ⚠️ (contains spoilers)
Content Warnings
Go in knowing this is set inside a psychiatric facility with a heavily sedated, morally black serial-killer MMC, so expect captivity/imprisonment, drugging, medical trauma, and heavy institutional power dynamics throughout. There's on-page violence and murder tied to the serial killer plot, plus stalking (the MMC learns the FMC's schedule from inside Ward A), obsessive/possessive behaviour, coercion, and psychological manipulation/gaslighting from a Jekyll & Hyde hero. Expect dub-con energy given the power imbalance and psychopath hero, sharing dynamics between the two MMCs (MFM why choose), plus emotional and mental abuse woven into the institutional setting. Toxic relationship dynamics and trauma/PTSD are baked in. Verify against on-page content and reader reviews before locking triggers — reviewers often flag extras like specific SA, gore, or on-page torture that aren't obvious from the blurb.
Publication Date2026-07-09 Relationship Pairing(s)Other Darkness Score8/10












Reviews
There are no reviews yet.