Watch Slay Belles (2018) HD Full Movie Free on SolarMovie. Watch Slay Belles (2018) online free. It's Christmas Eve, and three cosplaying women come across the malevolent Christmas demon Krampus. T...It's Christmas Eve, and three cosplaying women come across the malevolent Christmas demon Krampus. The girls must team up with Santa Claus himself to battle the creature and save the world.