Every day at 6 pm a serial killer kills another person. Police officer Helena Rus thinks the killings are done by one man only and decides to reveal the killer's identity by getting back in 18th century history of the city.

After a rigorous training, Bela becomes an undercover agent. Posing as a prostitute, she tries to infiltrate the Mokotow Group mafia. Bela needs to gain the trust of the mafia boss Padrino and his beloved daughter...