Names of 2 horror movies late 70's-80's
These 2 have haunting me since I was little when I saw them (and wasn't supposed to).
Both were on TV. The first I remember as being in BW, would have been late 70's very early 80's. A woman was being pestered by these little things (? Aliens? Monsters?) in her house. At one point, they tripped her on the stairs. At the end, they dragged her into the basement and it seemed like the police were there and were saying there was no sign of her. (Please remember I was probably 4 or 5 when I saw this, so details are sketchy! )
The second I saw on TV in 82 or 83. I believe it was movie--could have been a TV show. Two groups of teenagers dare each other to stay in a haunted house and are playing tricks on each other to scare the other group out (the group who stays wins). But, it turns out there is actually a monster/demon/evil guy in the house who is ALSO killing the teens and one by one they die. Final scene the last girl is leaving in her car and the killer is on top of the car and she creams him on the spiked fence.
Please, someone tell me what these are. I had nightmares for weeks because of these stupid movies and I want to purge them from my pysche!!
Thanks!!