Sweetie

Sweetie is a movie starring Geneviève Lemon, Karen Colston, and Tom Lycos. An introspective young woman's life is upturned by the arrival of her maladjusted sister.
The buttoned-down, superstitious Kay is attempting to lead a normal existence with her new boyfriend Louis. That’s until Sweetie, her rampaging, devil-may-care sister, returns home after an absence, exposing the rotten roots of their family and placing a strain on Kay and Louis’ relationship.