In Blackstone Port's underworld, a deadly rule circulates like a curse - anyone who receives a "Nameless Order" must eliminate the assigned target within 48 hours, or be erased by an unseen force.

Ethan, a gang enforcer, takes on one such order to save his lover Nina, who has been marked for death. But as he carries out the missions, he begins to lose fragments of his most precious memories with her.

The deeper he goes, the clearer the truth becomes: the one issuing the orders is the very man he killed five years ago - his own brother.

What he thought was a rescue has already become a five-year-long revenge trap… and he is merely a pawn inside it.