Dr. Rebecca Mathis (Shannon Tweed), a renowned sex therapist, finds herself embroiled in a dangerous investigation when a serial killer begins targeting practitioners in her field. Forced to team up with Detective Frank Pavan (Sam Hennings), Rebecca acts as a decoy to lure out the elusive, sadistic murderer. As the investigation deepens, passion flares between Rebecca and the detective, but dark secrets, hidden motives, and a web of obsession make it difficult to determine who can be trusted before the killer strikes again.