Lana pledges a sorority, unaware that its members are vampires. Elsewhere, Chloe sets out to impress the Daily Planet's editor-in-chief; and Lex threatens to have Prof. Fine fired if he continues to research LuthorCorp.

After Clark is pricked by a splinter of silver kryptonite, he becomes paranoid and thinks that everyone is conspiring against him---including his family and friends. Elsewhere, Lex asks Lana to help him uncover the secrets of the crashed spaceship.