The Other Mrs.

In Will’s second narration, he reveals how he manipulated Camille into killing for him, first the graduate student and then Morgan. But she transitioned too quickly into Sadie after the second murder, leaving a careless Will to destroy the evidence. Sadie is asking too many questions and needs to be silenced, as she could prevent him from getting away with the murders “scot-free.” He decides that the best way to do it is altering her medication with poison.

Otto is home sick and provides Sadie with information about Will that leads Sadie to suspect Will’s involvement in the murder. Will lied to Sadie about not having been in the house earlier in the day. Otto saw him digging in the yard. Other than the police, Will was the only one who knew that Sadie had found the knife.

Will decides he needs to kill Sadie and make it look like a suicide. He has some pills stored up for that purpose, and he will have her drink some wine so it will be lethal. He wonders if she has had her life-insurance policy long enough for him to collect in the event of suicide, then tells himself not to be materialistic.