Moritat - Manga

"I woke up in the hospital with nothing but fragments of memories from my life up to now. There was a man standing by my bed, who introduced himself as my lover. But one of my few recollections is of being left for dead in a snowy field by this very same man... Still, he looks like the only one who can provide me with the answers I need. Who the hell is he? What was the real relationship between the two of us?"