You probably have to be in just the right mood to enjoy a menstrual horror film, but if it’s getting to that time of the month, writer/director Richard Bates Jr’s Excision has plenty of pent-up angst to get out. AnnaLynne McCord is Pauline, whose negative relationship with her mother Phyllis (Traci Lords) manifests itself in graphic bloody nightmares. Her dad Bob (Roger Bart) struggles to understand, and instead dotes on her younger sister Grace (Ariel Winter) who has cystic fibrosis. Pauline’s alienation is astutely conveyed, while an accomplished supporting cast, including Ray Wise, Marlee Matlin, Malcolm McDowell and director John Waters, add to the otherworldly atmosphere. With strong warnings about the bloody content, Excision lives up to the surgical promise of the title.