For the first time ever Matteo has cheated on his wife Mara who is on vacation and spent a night of wild steamy sex with Angela whom he recently met by chance He awakens with a headache and a satisfied memory of the night But a message from the wife tells him that she is coming back home because of a hitch and leave him prey to panic He tries to hide every trace of the adultery but plagued by guiltfeelings and fear of being caught enters into a paranoiac spiral and his clumsy attempts to fix things only manage to create more damage