"Vincenzo" tells the story of Italian lawyer Vincenzo Cassano, who returns to Korea due to a conflict within his organization. Known in Korean as Park Joo-Hyung, Vincenzo is a lawyer who consults for the mafia in Italy. However, when a war breaks out between mafia groups, he returns to Korea. There, he tries to achieve social justice in his own way. During this process, he falls in love with Lawyer Hong Cha-Young, who does everything to win the cases they take on together. They achieve justice by using the methods employed by the bad guys.
