One Tuesday evening a group gathers at Miss Marples house and the conversation turns to unsolved crimes... The case of the disappearing bloodstains; the thief who committed his crime twice over; the message on the death-bed of a poisoned man which read heap of fish; the strange case of the invisible will; a spiritualist who warned that Blue Geranium meant death... Now pit your wits against the powers of deduction of the Tuesday Night Club.