Lecturing on a law course at a local college, the Chief finds that one of the students is planning to prove that the perfect crime can be committed. The person responsible appears to be particularly cold and calculating, and the Chief finds that he is facing true genius.

Eve's niece is arrested for possession and use of marijuana, and the Chief investigates her school and friends in a bid to clear her. It soon becomes obvious that she is guilty as charged, but how many others are involved, and just whose fault is it?