Plot Summary:The girlfriend of Detective Luca Mocci moves from the house of her friend Charlotte to live with him. When the corpse of the upper-class escort and student Valentina Martini is found in an apartment, tied and beaten after a kinky sex, Detective Mocci becomes obsessed with his investigation in the underworld of sex in his city, arising dark desires and affecting his relationship with his girlfriend.
The investigation of a girl's murder leads a young police inspector to explore the darker and more ambivalent side of Roman nightlife. The inspector's enquiries soon verge on obsession, leading him to play a perverse game into which he also drags his girlfriend.