Watch The Gallows (2015) HD Full Movie Free on solarmovie.do. Watch The Gallows (2015) online free. 20 years after a horrific accident during a small town school play, students at the school resurrect...20 years after a horrific accident during a small town school play, students at the school resurrect the failed show in a misguided attempt to honor the anniversary of the tragedy - but soon discover that some things are better left alone.