18 Movie Stalkers You Should Not F*ck With

Poison Ivy is great advertisement for choosing your friends wisely. Drew Barrymore stars as Ivy, a wise-beyond-her-years teenager who befriends Sylvie (Sara Gilbert). The two become fast friends, but Ivy isn't all that she seems. Upon seeing's Sylvie's seriously ill mother, Ivy begins carrying out a plan to seduce Sylvie's father. Sex, murder, and mystery follow.