After exacting revenge for the death of his beloved dog and the theft of his car, the legendary hitman reluctantly resumes his life within the underground assassin society. Bound by a blood oath to help an old associate, Santino D'Antonio, he is compelled to repay past favors. With reluctance, he travels to Rome to complete the task, which involves eliminating Santino's sister, Gianna D'Antonio, so Santino can take her seat at the "High Table," a council of high-level crime lords. The hitman gears up for his mission, arming himself with weapons and tactical suits, and reaffirms his reputation as a formidable killer with unmatchable precision and skills.

His mission in Rome pits him against some of the world’s deadliest assassins, and he finds himself enmeshed in a larger conspiracy that threatens to amplify the bounty on his head. The hitman navigates through an intricate web of professional killers and betrayal, seeing his commitment to obey the codes of this secret society tested. As he seeks to fulfill his obligation, his actions set in motion a sequence of events that expose deeper treacheries within the criminal underworld, leaving him isolated and targeted by his peers. Regardless, they all come to understand one resolute truth: you don’t double-cross the man once known as Baba Yaga, the Boogeyman.