After losing his only brother to a car crash, Stuart Hollister, an elevator technician with social anxiety, finds a clue on his brother's phone that leads him to think the accident was not so accidental. With the help of a hacker he meets on the Dark Web, Stuart follows his only thread to the truth, by which he discovers his late brother's secret passion for BDSM in general, and one dominatrix in particular. He soon finds himself swept up in a dark world of organized crime, hypnosis, mind control, and murder. The dangers and erotic temptations he faces are as much psychological as they are physical. He can only hope to solve the mystery of his brother's death before he meets the same end.