In an alternate world where hearts are made of objects and suppressing emotions is self-care, a lonely woman rips out her own heart for the man she loves, only to discover that he has run away with it.

Kept locked inside the house by her father, 7-year-old Chloe lives in fear and fascination of the outside world, where Abnormals create a constant threat—or so she believes. When a mysterious stranger offers her a glimpse of what's really happening outside, Chloe soon finds that while the truth isn't so simple, the danger is very real.

Five animals meet regularly to discuss their inner angst in a group therapy session led by Dr. Clement, a canine psychotherapist. The group includes Lorraine, a leech who suffers from separation anxiety; Cheryl, a praying mantis who can’t seem to keep a man; Todd, a pig with an eating disorder; Jeffrey, a bird with guilt issues; and Linda, an obsessive-compulsive cat.