Chaos breaks out when a killer stroller goes on a spree of carnage across small town America.

Sara is unhappy in her job, her relationships, and just about everything else she has going on in her life. One Friday night, a night she thinks her longtime boyfriend is going to propose, Sara is surprised when things don't go as planned. Soon things turn violent and Sara has to cover her tracks. This all coincides with a visit from a know-it-all plumber, a nosey neighbor, and phone calls from a friend who talks incessantly. Tired of being MANSPLAINED by the world, Sara enacts the best kind of Polanski-esque revenge on her would be mansplainers.