"Open House of Horrors" is a Halloween episode from the fourth season of the American TV series Modern Family. It was first shown on ABC in the United States on October 24, 2012.
Claire has overdone it in Halloweens past, so this year she's being forced to keep it "kid friendly." Phil has an idea to hold an open house on Halloween night. Mitch and Cam host a costume party while Lily wonders who her real mom is.