The mother of the family for which Michelle baby-sits dies unexpectedly. Michelle is asked to take over looking after the children and is gradually "seduced" by the father.
The cop (Felicia rashad) owns a dog named Willie that is in the movie near the end - someone sets up her house to blow up and the dog walks out of the house before the house explodes. We see Willie after destruction, he's totally fine and out of harms way.