Till Death (2021)

Emma is stuck in a stale marriage to Mark and is surprised when he whisks her away to their secluded lakehouse for a romantic evening on their 10th anniversary. But everything changes the next morning when she finds herself handcuffed to Mark's dead body. Trapped and isolated in the dead of winter, Emma learns this is only the beginning of Mark's twisted plan, and to survive, she must fight the hired killers coming to finish her off.