Eddie Clark brings Mark Sloan tickets for his last show in the Magic Mansion with his traitorous partner Paul Madison, who intends to go solo and take all their tricks, leaving Clark stranded. Mark, Jack, Amanda, and Dolores witness their last duo show, but instead of escaping, Madison drowns, and the key to the cuffs Eddie handed him didn't fit. Mark, a gifted amateur illusionist himself, believes his former neighbor-boy Eddie's declaration of innocence, so he and Jack,'helped' by Amanda, investigate the other magicians performing in the Mansion and possible business or amorous motives and alibis. Alas, any contact with them and their props can have unforeseen consequences, even for Steve's undercover drug investigation. Mark looks into the tricks' timing too and works out a showy finale.