The evil in someone we love.

Pierre Lattimore and his husband James have been searching for a child, not to replace their late son, but just to love another child. They have two grown sons, and they have their own lives and Pierre wants to have another child in the house.
They find Sabrina, she appears to be the perfect child, but James thinks there's more to her, that Pierre doesn't see.
There's something familiar to him about her, read on as we see what's really going on with Sabrina