Late May and Vampires.

I was watching a movie about a family of a father and two little girls. They had a huge and beautiful house and overall were a very happy family with well-behaved little kids. The father put the girls to bed and decided to have a swim in the hot tub which was on the other side of the house and through a long hallway. He unlocked a door which had been locked for a very long time and he found in the hallway the bodies of vampires which were not yet awake. He was very frightened but didn't do anything. The vampires woke up and then the dream flashed to the little girls. They were laying in bed bored and they tried to figure out something to do that wouldn't wake up their father, whom they assumed to be asleep. They decided to get in the hot tub and they climbed out their window and walked over the slanted roof to get to the other side of the house. I woke up just as they were about to open the door of the hallway to find the vampires and their father.