A fragile Kansas girl's unrequited and forbidden love for a handsome young man from the town's most powerful family drives her to heartbreak and madness.

Burglar Nat Harbin and his two associates set their sights on wealthy spiritualist Sister Sarah, who has inherited a fortune -- including a renowned emerald necklace -- from a Philadelphia financier. Using Nat's female ward, Gladden, to pose as an admirer and case the mansion where the woman lives, they set up a perfect break-in. Things get complicated afterwards.