Coffin Humor: A Short Story

Noah awoke in a casket.
The casket was on display in a funeral parlor.
He awoke several times more in the same casket and each time had a conversation with the funeral services practitioner, a strange man named Jeremy Black.
During these exchanges, he became aware that his memory was seriously impaired.
Each time, however, he learned a little bit more about his past through a reliving of the last desperate few days.
He also learned that the recovery of his memory would lead to his death.
Problem was: It might already be too late.