In contemporary Prague a young musician is obsessed by jealousy for his beautiful girlfriend Klara. He engages a private detective to spy on Klara but this starts an uncontrollable series of accidents, misunderstandings and traps culminating in an unusual Venice.—Anonymous

Master director Roberto Faenza (Sostiene Pereira) returns to the screen with this adaptation of Michal Viewegh's novel of the same name ("Prípad neverné Kláry"). The tale opens in early 21st century Prague, Czech Republic, where a gifted young musician grows plagued by feelings of jealousy and possessiveness, and the neurosis that his gorgeous girlfriend Klara is cheating on him. He hires a private detective to spy on Klara, but this accidentally triggers a string of misunderstandings, bizarre accidents and calamities that will permanently change the lives of both partners.