Accused at 17

This very familiar story may have been inspired by several real life crimes, cobbled together for this predictable exercise. Three teenage girls, led by a bully, gang up against a fourth girl and inadvertently kill her while trying to "teach her a lesson". Among the remaining three, mostly-innocent Bianca is also conveniently mostly-at-odds with her single mother and has left a trail of mostly-damning clues; the second girl, Sarah, is a weak-willed asthmatic follower, and the third, Fallon, is an ice cold, manipulating sociopath. Predictably, the most decent people in the story suffer the earliest consequences, as if to underscore the point that no good deed goes unpunished. Because she is the first to spill the beans, Bianca is charged with the crime ("Accused at 17") and conspired against by the other two. Trying to clear her daughter's name, Bianca's mother investigates but has her daughter's habit of leaving misleading clues when Sarah is subsequently also found dead. Evil Fallon plants evidence and tells lies, and also has a shallow, narcissistic mother who sunbathes by their pool, practices yoga and drinks martini's from an over-sized martini glass. The only familiar actor in the cast is William R. Moses, wasted in a one-note role as Fallon's clueless but decent father. It all leads to a formulaic conclusion where everything is revealed in one scene less than five minutes before the movie ends. You sort of see it coming.