Clark is forced to use his powers in front of Alicia, a new girl at school, but he is surprised to find out she has powers of her own. He thinks that he's found the right girl, but things go ugly when it seems Alicia has gone over the deep end. Meanwhile, Lana asks Lex to investigate Adam and his true motives are revealed. This episode was entertaining and sexy. The two best scenes were when Alicia teleported into Clark's bedroom and he got caught red-handed by his father (a very amusing scene) and the final scene, where we learn more about Adam. Despite being a cheesy episode, Obsession was actually fun. Alicia returns in the following season.

