A movie about alien invasion of the earth. This movie is about an alien spaceship that sucks people into the spaceship and then takes them to a cave to become aliens? Beg this

At first, an alien flying saucer would suck people and interfere with signals as long as it saw them. An alcoholic was watching TV when an alien spaceship flew to his home. As soon as he opened the door, he was sucked in, and finally he was taken to a cave. Everyone was sucked in and finally he became an alien.