I think it's a movie from the 80s or early 90s. My brother and I have been trying to find it everywhere. There was this house with random people. I think they were all family members. One was a fly with a human head. There was a realllllly big baby. I'm pretty sure it was a comedy. If anyone could help out it would be great!

The name is Maniac Mansion, and it was actually a TV show not a movie. http://www3.sympatico.ca/lfsociety/maniac.htm, this is a good web site to look at if you are a fan of that show.

Oh my god... thank you so much! I have been trying to find out where the memories were coming from, I had no idea it was a TV show, I always thought it was a movie