Check out the Killing Mary Sue trailer for this upcoming dark comedy film starring Dermot Mulroney, Sierra McCormick, Sean Patrick Flanery, Jake Busey, French Stewart, Kym Whitley, Jason Mewes, and Martin Kove.

Dermot Mulroney stars as a corrupt senator who arranges for the murder of his biggest liability, his erratic burnout step-daughter (Sierra McCormick), only for her to unwittingly discover her natural talent as an untouchable killer.

Killing Mary Sue, written and directed by James Sunshine, releases on digital platforms on June 13, 2025.