Delilah suspects her husband Carl of cheating with her friend Rose. She hires a reliable source to spy on them at a work Christmas party. The source reports back that Rose took advantage of a drunk Carl. Enraged, Delilah seeks revenge on Rose. When Rose tries to apologize, Delilah is pushed over the edge. The story outline then describes an opening horror sequence showing Delilah's descent into madness seeking vengeance, ending with Rose appearing to be murdered.