The summer before she goes away to college, Tamara encounters a girl with a scar on her chest. As the summer winds on, she finds herself increasingly attracted to Heartless.

患有焦虑症的年轻鲍比·斯派德发现，他的治疗犬奥兹实际上已经600岁了，从古以来就一直被一个强大的巫师所拥有。鲍比十二岁生日那天，当他得知他忠实的宠物真相后，他就开始新的生活了。宠物很快决定了男孩和他寡妇母亲的命运。