A pet sitter is called to mind a puppy why his master is away for the day. When he arrives, he finds a boy tied and gagged in a closet. Immediately, he tries to help him. This boy explains to him that his Master must have tricked him, which means he is watching them both... if he doesn't have sex with him, he'll be in trouble.
The boy seems calm yet resigned, like he hates his Master, but doesn't feel the drive to escape. Defeated and broken. His 'pet sitter', however, considers himself straight, and is very moved by this poor boys predictament. Before he can manage to protest, the 'puppy' works his magic on him, and by the end of it, the sitter is taking tentative control.
When the two are done with their awkward love making, the puppy asks him to leave, before his Master returns. Reluctantly, the sitter leaves, but spends every minute worrying for that poor boy...
...until he see's him at the mall, arm in a sling, eye patched over, leaning on a crutch with a bandaged chest, his collar gone. While he still seems quite withdrawn and quiet, theres a new vitality to him, despite his injuries. He's homeless, and hungry, thrown on the street by his Master... just like a puppy.
This boy gave him the courage he dearly needed to defy his cruel Master, and now, broken in body but new in spirit, he captures his 'sitters' interest, and they become lovers.