Valentine's Day

On what should have been a warm and beautiful Valentine's Day, four beautiful women received chilling and weird cards, and then weird and terrifying things began to happen among them. It turns out that all this happened because they ruthlessly laughed at a poor introverted and eccentric boy when they were in school. Several years have passed since the cash was transferred, and the "ugly duckling" at the high school prom has turned into a "swan" and decided to come back to exact the most ruthless revenge on them on Valentine's Day. Who is the culprit, and can these four beautiful women escape this disaster? Everyone around them is suspicious...