Valentine

Four friends start to receive morbid Valentine cards and realise they are being stalked by someone they had spurned 13 years ago. A masked killer is on the loose and Valentine's day is soon approaching. Thirteen years after a group of popular girls falsely accused an outcast junior high school student, now a woman, of assault, she and her friends start to receive threatening Valentine's cards before they are brutally murdered one by one, leading them to suspect that the killer might be someone from their own past.