Ex-marathoner Sam Jameson can't run from her problems anymore. She begins a hot yoga practice to conquer her paralyzing grief, loneliness, and guilt over a shameful past. As she cautiously forms new relationships with a mentor, lover, and a friend, she discovers she's being stalked. As the heat rises, she realizes one of them wants her dead. If Sam can't discern ally from adversary, corpse pose could take on a whole new meaning.