Das Psycho-Girl – Du wirst sie nicht mehr los (2000)

Kevin is the most popular boy in his class, and his classmate Biene feels the same way. However, she doesn’t think she has a chance of ever getting together with him. But then things take a turn: On a field trip, Kevin and his friend secretly slip LSD to their teacher, who dies as a result. Biene has a videotape showing the whole thing.