Experiment Alcatraz

Frank Bigelow is about to die, and he knows it. The accountant has been poisoned and has only 24 hours before the lethal concoction kills him. Determined to find out who his murderer is, Frank, with the help of his assistant and girlfriend, Paula, begins to trace back over his last steps. As he frantically tries to unravel the mystery behind his own impending demise, his sleuthing leads him to a group of crooked businessmen and another murder.

A murderer is brought to court and only Miss Marple is unconvinced of his guilt. Once again she begins her own investigation.

A falsely convicted man's wife, Catherine, and an alcoholic composer and pianist, Martin, team up in an attempt to clear her husband of the murder of a blonde singer, who is Martin's wife.

Upon waking up to the news that the man she’d gone on a date with the previous night has been murdered, a young woman with only a faint memory of the night’s events begins to suspect that she murdered him while attempting to resist his advances.