After a personal tragedy, a police detective investigates a school massacre committed by a student - and another massacre. Are the 3 tragedies linked to demon possession?

When a sous chef accidentally discovers her boyfriend is going to propose to her on Christmas Eve, she begins doubting their future together; especially when a handsome maple farmer rescues her from a snowstorm.

After her husband is murdered, Kate is considered the prime suspect, thanks largely to her popular vlog, aptly titled "A Good Wife's Guide to Murder." Using her own expertise in the area, Kate must delve through the other suspects...