The Bat

When Miss Cornelia Van Gorder takes a house for the summer, she and her guests suddenly find themselves the targets of a costumed criminal known only as "The Bat." Intent on uncovering the location of a cache of riches supposedly hidden in Van Gorder's rental house, The Bat risks everything to seize the fortune before being discovered.

The Bat was originally an enormously successful stage play adapted by novelist Mary Roberts Rinehart from her best-selling mystery novel The Circular Staircase.