How is this not a horror movie already?
Crazy Human Shadow Illusion On Japanese Variety Show

This is an old clip from Japanese variety show Kasou Taishou in which a girl appears to dribble and bounce a basketball, while her human shadow does the same. That’s wild. Almost as wild as Peter Pan’s shadow — that thing has a mind of its own. My shadow? My shadow never does anything exciting, and I rarely even see the thing. “Maybe you should go outside more.” Oh what, and become one of those weirdos who points their bare ass at the sun? No thanks!