A la mort de son père, Guillaume, commissaire de police, hérite du bowling familial. Il décide de le donner en gérance à son demi-frère répudié, Quentin. Le comportement pulsionnel de Quentin et son improbable gestion du bowling empêchent Guillaume de se consacrer pleinement à l’enquête sur une série de meurtres de jeunes femmes qui frappe la ville.
Tired of country life, Anna leaves military school and her home to live in exciting Prague where she finds herself confused by the behavior of her hip new friends. Irma is despondent over her latest break-up. Speedy is always high, but his brother Filip seems normal enough and Anna takes a shine to him. She does not realize that Filip is gay and involved with his roommate Kytka...