After a two-year period during which numerous women were reported missing in Cleveland's Mount Pleasant neighborhood, a reported rape leads police to a grisly discovery: a serial killer, operating virtually in plain sight. Why had police failed to investigate the missing persons' cases? Why did neighbors turn a blind eye to the killer's activities? Told through the wrenching testimonies of survivors, UNSEEN is a riveting true crime documentary that poses disturbing questions about marginalized lives and criminal justice.