Watch Killer Prom (2020) HD Full Movie Free on SolarMovie. Watch Killer Prom (2020) online free. After losing her mother in an accident, a teenager and her father welcome a distant cousin into thei...After losing her mother in an accident, a teenager and her father welcome a distant cousin into their home. Hoping to claim the family as her own, the psychopath hatches a devious plan to recreate the prom she never experienced.