Greta is a great pick if you're looking for something creepy and suspenseful. Frances, a girl who is mourning the loss of her mother, finds a handbag on the subway and returns it to its owner, a French piano teacher whom she befriends and believes is simply a lonely widow. However, Frances soon notices Greta's obsessive behavior, and takes the necessary steps to distance herself from the friendship. Greta, not happy about Frances ignoring her, becomes more erratic and takes matters into her own hands, determined not to lose Frances's attention. This film will have you completely engrossed until the last scene and is perfect for those who like realistic horror.