A secret support group for assassins is convened under the guise of a self-help group in an underground location. The members include a range of personalities, from lethal professionals to reluctant killers grappling with their line of work. During one meeting, tensions run high as a new member joins the group, prompting suspicion and unease among the regular attendees. The group's facilitator, who also harbors his own dark secrets, tries to maintain order and guide discussions, but mistrust and paranoia begin to take hold. The volatile mix of characters and their dark pasts quickly surface, leading to heated exchanges and unexpected revelations about their latest assignments, each filled with hidden motives and personal agendas.

The central narrative intensifies when it's revealed that the assassination of a high-profile U.S. senator has recently failed, throwing the world of these assassins into chaos. Accusations fly within the group about who among them might have botched the job and whether someone is secretly working against the others. As alliances form and shatter under the pressure, the group's veneer of control disintegrates. This breakdown amplifies the tension, leading to a climactic confrontation that forces each member to confront their own personal demons and the intertwined fates that brought them together.