Commissioner Kostas, with a sore shoulder, refuses every visit. The murder of Koustas, a well-known entrepreneur and owner of a nightclub, brings him to the attention of agent Nikos, who immediately competes with Petros.

Despite doctors' unfavorable opinion, Kostas returns to work. Caterina is seeing Fanis, the doctor to whom Kostas owes his life. The case of Koustas' murder turns out to be more complicated than expected.