On the cusp of New Year's Eve, seven friends and a mysterious backpacker converge at a desolate ski lodge in the mountains when they are systematically hunted down by ruthless masked men with a cryptic agenda.

Sadie and Kevin have decided to spend a romantic weekend together at his lake house. But when an unexpected- and unfortunate- text from her best friend Jennifer to Kevin reveals a lurid love affair between the two, Sadie spirals a into a hunger for revenge.