Remzi Ünal, Istanbul's lonely private detective, a nicotine addict and coffee lover, has seen better days. Then, Dr. Kemal Arsan, the suave internist from a private clinic, appears at Café Kaktüs. He has been missing his girlfriend, a nurse from the same clinic, for four days. Remzi takes on the case and seems to poke a hornet's nest: a young doctor is found dead in a caregiver's apartment, a petty criminal attacks Remzi with a scalpel, and a mysterious clinic is treating puzzling cases with dubious methods. The investigation spirals out of control. Beautiful, intelligent nurses, lying doctors, and a confused old woman keep Remzi on his toes in traffic-jammed Istanbul. Who belongs to whom, and who has something to hide? Remzi Ünal is the first to have an inkling.