Camille arranged for Carrie to drown in a canal near campus. Will describe to Camille what it would do to him and his reputation if he was found guilty of the charges. Will recognized that Camille was willing to kill for him when Carrie Laemmer, a student of his, accused him of sexual harassment. Erin’s younger sister suspected Will killed Erin, but was unable to prove it. Will is the antagonist in the novel as he killed Erin, his first fiancee after he learned she had fallen in love with another man and wanted to break off the engagement. He uses Sadie's disorder to manipulate her into committing crimes for him. Will, Sadie’s husband, knows Sadie has a mental disorder that causes her to behave like different people though he did not have a name for that disorder. Mouse, another alter, is a young girl who is being terribly abused by her new stepmother. Camille is one of Sadie’s alter personalities, a provocative, loud woman who admits she is obsessed with Will.

She suffers with dissociative identity disorder but is not aware of her condition. Kubica builds her novel using the first-person point of view of four different characters. Sadie has no knowledge of having left the house. Sadie claims she was at work the day, but the receptionist tells police that Sadie was out of the office for a three-hour block of time during the day. Sadie becomes obsessed with Morgan’s murder, especially after a next-door neighbor claims he saw Sadie fighting with Morgan.

Imogen is an angry teen girl who does her best to make Sadie feel unwelcome. Alice died by suicide leaving her daughter, Imogen, in Will's and Sadie’s care.

She and Will inherited the house that belonged to Will’s sister, Alice. Just a few weeks after the move, Morgan Baines, a neighbor, is violently murdered. Sadie, a doctor, had a nervous breakdown and allowed a patient to die when she left him in the care of a resident. Her oldest son, Tate, was expelled for taking a knife to school. Sadie and her family moved to Maine hoping for a fresh start. The truth, however, is closer than even Sadie realizes.

Sadie fears the murderer is still lurking about the neighborhood, perhaps even living in her home. by Mary Kubica, Sadie Foust becomes obsessed with the murder of a woman who lived down the street from her family’s new home in Maine. In the psychological thriller The Other Mrs. The following version of the novel was used to create this study guide: Kubica, Mary.

Kubica the other mrs