An ordinary boy from a suburb of Sofia became the first undercover police officer in Bulgaria. Forced as a child by his father to steal and cheat, Martin becomes the perfect liar. This skill of his, as well as his hatred for the underworld, make him the most suitable person for a dangerous mission - to be implemented in the criminal organization of a large and influential businessman. While delving into the group's secrets and living in constant fear of being discovered, Martin falls in love with the most inappropriate of women - Djaro's friend Sunny. Just as he gains the trust of the mobsters, it turns out that the real enemies are in the police. Martin is left alone against everyone, facing difficult decisions.