Assassin Alessa is captured while attempting to kill rival mafia leader Marco. He offers freedom in exchange for killing her original employer, and a contract marriage allows them to operate together publicly. Their growing feelings complicate an assignment defined by competing criminal groups and uncertain loyalties.
Serafina is arranged to marry mafia don Luca and learns to equate obedience with survival. His cousin and enforcer Matteo offers a different kind of regard, leading to a forbidden attachment. As loyalties fracture, she must decide whether to remain silent or challenge the power governing her life.