A man who is late hurries into the bathroom to shave and trips over an item on the floor from the guy he lives with.
Entering the bathroom, the dressed man starts to shave as another man in the shower sings loudly.
Annoyed with the other, and needing to rinse his shaver, he turns on the water and scalds the other. As the man in the shower screams, the other has a slightly evil smile.
It is never made clear what the nature of the men's relationship is, it appears open to interpretation of roommates or more (despite the poor treatment).