Watch Horror Express (1974) (1972) HD Full Movie Free on solarmovie.do. Watch Horror Express (1974) (1972) online free. While on the Trans-Siberian Express, an anthropologist and his rival must contain the threat posed b...While on the Trans-Siberian Express, an anthropologist and his rival must contain the threat posed by the former's cargo: a prehistoric ape which is the host for a parasitic life-form.