Cross My Heart, I Hope You Die - Mallory Arnold

One isolated cabin. One cheating boyfriend. One plan to get even.

When Nora, Ruby, and Cham discover that they've each been dating the same man, what starts as outrage quickly spirals into a plot for revenge. Together they hatch a plan to lure their boyfriend to a romantic getaway in a secluded cabin at the top of a snow-covered mountain.

Only what was meant to be harmless payback soon takes a chilling turn when their not-so-adoring boyfriend is found dead in the cabin. 

Stranded and snowed in, the women begin to look at each other with increasing suspicion. And as tensions rise, hidden motives come to light. To survive, each woman must confront her own demons as they fight to uncover if one of them is the killer, or if something else lurks in the freezing wilderness, waiting to pick them off one by one.