The new movie Nightbitch stars Amy Adams as an exhausted stay-at-home mom to a toddler. Missing her career and frustrated by her inattentive husband (Scoot McNairy), her woes begin to manifest in a bizarre way: She transforms into a dog at night. She enjoys tapping into her animal instincts. But eventually, she's forced to confront her resentments toward motherhood and the lack of support from her husband.