80s movie with a scary zoo and possessed women

Date: 12/27/2016

A movie that me and dad were watching it was an iconic classic movie that I had scene before a long time ago it's cover title showed a woman with a demon lifting her up in a cloud of smoke. it was happening at a Zoo at the bottom of the hotel owned by the possed women and her husband it all started with the woman her husband and the zookeeper trying to keep an animal that got out under control when they do that they accidently let loose a half skeleton half monkey that was released into the mountains but came back to secretly live in the zoo I remember we were driving on the road and fake bats and snakes were on the road and the cars would have to doge these animatronix animals that's when they went to go check out the zoo to see what was going on the man ran into the house of a family with three boys there living room looked like grandma's he asked them to call 911 the boy called then the mom took the phone away from him and then he grabbed the phone and asked for a couple ambulance a few police men and all of animals control the it cut to a scene of a man looking at a map and a blue smoke had congregated where the zoo was it was moving a man asked him " it's been a week do you rly wanna go back there" he said " "I half too" then we cut to the couple checking into a hotel room and the man leaves and says he has too meat the in laws and the women says were not married just dating and when he leaves she turns into a total different person she talks  to the bell boy and for some reason I don't think he doesn't know she possessed