Jill Shiplake dies after being picked from the audience to assist magician Laurence Pross in a stage trick. Laurence believes rival conjuror Anton Duke sabotaged the trick and consults Luella and Frank. They discover that wealthy Jill had argued with cash-strapped spouse Steffan and CCTV seems to incriminate him but the detectives find that he has been framed and must work out why and by whom.
—don @ minifie-1