In Cambria, California, Anna is hosting a New Year’s Eve party. Nina, a long-gone high school friend, makes an appearance at the party after returning to Cambria from New York. Maria, one of the guests, struggles with the feelings Nina’s presence evokes and with facing the party goers: a gaggle of eccentric millennials.

A distraught mother suspects her teenage son is a psychopath who may shoot up his high school, but when he outsmarts the mental healthcare system she is forced to take matters into her own hands… A Mothers Worst Nightmare.