none of the main characters are being stalked, but one of the main characters has a whole setup to spy on his neighbors and listen to their phone calls (the main plot revolves around this)
A dog is accidently hit by a car (you don't see or hear it happening but the dog is bleeding and whimpering afterwards). A dog is pushed violently down a bed and whimpers.
Later in the film a dog is abandoned, tied to a lamppost, but the owner returns for him.
*Spoilers*
At the end of the film, a dog and its owner are on a ferry that sinks, the owner is seen being rescued without his dog.
Basically a bad film for dogs