Police Officer So-Eun takes part in the investigation and acts as stand-in for a kidnapped child’s mother. So-Eun receives a shocking phone call. Meanwhile, Hye-Jin is a mysterious person, who knows a hidden secret behind the cases.

Vincenzo Cassano is an Italian lawyer and Mafia consigliere who moves back to Korea due to a conflict within his organization. He ends up crossing paths with a sharp-tongued lawyer named Cha-young, and the two join forces in using villainous methods to take down villains who cannot be punished by the law.