Psycho Killer ends with pregnant State Trooper Jane Archer preventing a catastrophic nuclear meltdown after a tense standoff with the Satanic Slasher. However, the unexpected genre shift from gritty revenge thriller to high-concept disaster movie hides a massive government conspiracy that the film only fully reveals in its final moments. Psycho Killer (2026) Ending Explained State Trooper Jane Archer (Georgina Campbell) tracks the Satanic Slasher to a nuclear power plant cont