Experiment Perilous

Unhappily married Richard Mason concocts a meticulous scheme to kill his shrewish wife so that he'll be free to marry her sister.

Stephen Neale is released into WWII England after two years in an asylum, but it doesn't seem so sane outside either. On his way back to London to rejoin civilization, he stumbles across a murderous spy ring and doesn't quite know to whom to turn.

After waking up in a hospital with amnesia, professor Robert Langdon and a doctor must race against time to foil a deadly global plot.

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.