A blind Englishwoman weds a French nobleman and moves into his family’s chateau, but she quickly realizes someone there wants her out of the way.

A wealthy lord dies and is entombed with a valuable deposit of jewels. Seven keys are required to unlock the tomb and get hold of the treasure. A mad doctor…

The tenants of an old London boarding house spend their time in petty bickering and sniping until a mysterious stranger arrives at their door.