Edna Davies should be planning a wedding, but when her husband is accused of murder, she drops everything to prove his innocence. With her favorite detective otherwise occupied and her usual confidant in the hospital, Edna has nobody to help her except an old rival. Confusing the situation, a woman shows up who is a dead ringer for Edna’s best friend. Nobody knows who she is or where she came from, but Edna believes she’s the eye-witness who can clear Albert’s name. As she gets ever closer to identifying the doppelganger, Edna begins to wonder if she’s hunting the killer.