This chilling docudrama chronicles the tale of 4-year-old Heidi Wyrick (played by Kelsey Lowenthal) and her seemingly imaginary friends, Mr. Gordy and Con -- who may be more than just harmless invisible playmates. When Heidi divulges disturbing details about her two chums to her parents, they chalk it up to an overactive imagination … until other family members begin to have supernatural encounters -- with the physical marks to prove it.