I received a copy through Netgalley and I am leaving this review voluntarily.

Karl is a fourteen-year-old boy with a drug addict single mother, who finds out that the man who lives below him is a serial killer. The man, Harris, then tries to recruit Karl as his apprentice.

For a thriller, this book was just incredibly bleak and not really thrilling. A lot of slurs, bullying, drug use, suicidal thoughts, and dead women. I can't honestly say I enjoyed anything about it, except a brief moment when it looked like Karl's mother might recover from her depression, which didn't last.