Stan, Kyle, Cartman and Kenny decide to play detective; they go around the town solving minor "crimes" for a dollar. They first investigate the disappearance of a pie left sitting on the windowsill of an elderly couple's home. After examining the scene of the crime, they come to the conclusion (based on no evidence at all) that the husband planned to murder and dismember his wife to have the pie for himself; however, before he could go through with the plan, the pie had already been eaten by their dog, where the boys found it. Horrified by their outrageous accusations, the couple hurriedly send them away, but not before giving them the dollar they had promised.