Kaiki! Shiniku no Otoko

Shinkai Yosuke is haunted by a past he cannot recall...and a body that is rapidly decomposing. Washed up on the shores of Japan, he is isolated by doctors eager to find out why he has been brought back to life only to suffer again a slow and gruesome death. But Shinkai knows he has little time left. He is desperate to find out who he really was, and why he has become a living corpse.