Tiny Little Voices (1970)

Anna hasn't left her apartment since the pandemic. She's delighted in there, especially because she goes on great adventures with her imaginary friend Walter. Eventually, Nina, her best friend, drags her out of the house. Here Anna meets Zack, a germophobe, who runs around in a homemade Covid Hazmat suit. The rest of the movie is a very silly comedy about how two people who don't like getting close to humans, get close to each other.