A young man kills his bride on the day of his marriage and goes insane. He wakes up in an asylum with no memory, left in the hands of two mysterious doctors who relate his condition with his biological identity.
Dogra Magra is a novel considered the masterpiece of mystery writer Yumeno Kyusaku. Published in 1935 after more than 10 years of planning and writing, it is noted as one of Japan's "three great mysterious novels", alongside Oguri Mushitaro's The Black Death Mansion Murders and Nakai Hideo's An Offering to Nothingness. It formed the basis of a 1988 film of the same name.