It's a Wonderful Knife

During a murderous Christmas party, Winnie Carruthers saves the town from a serial killer dressed up as an angel. As the year passes after the incident, Winnie starts to feel like everyone would be better off without her around. Her wish is granted, and Winnie is transferred to a parallel universe where things are going very, very poorly.

Jane Widdop, Jess McLeod, Joel McHale