I'm looking for a movie dating from the 70's or the 80's where a guy is initially in his garden, with his dog.
He is in his yellow pyjamas.
There is a beam of light that appears in the garden. He enters the beam of light and is beamed-up to somewhere alien. There are several people like him and then all of sudden, he takes off of his human skin to reveal he is an alien.
As you can imagine I was young and the story freaked me out.