Pennant Pictures

In Britain, a man with a shady past uses his antiquities shop as a front for smuggled diamonds but his young shop-assistant starts blackmailing him, leading to murder and to a police investigation.

All but a prisoner in the exotic Malayan retreat she shares with her Chinese financier husband, Yuan Sing, British singer Sadie Merivale begins a dangerous affair with nearby plantation owner Harold Marquess. But when Sing discovers his wife’s betrayal, he plots to regain his honor by slowly torturing her lover to death.