 Vernon Wedge is a hot shot lawyer who agrees to defend 17-year old Benjy Marino who is accused of murder. Benjy swears he s innocent but Wedge isn t buying it and feels he should plead guilty. He nonetheless decides to defend him and at the trial tries a chemical test to determine if blood is present on the knife, but the DA objects and Wedge uses the refusal to undertake the test to get Benjy off. But would the test have revealed?