A murder mystery in a locked room type situation, with a supernatural twist. Although Hell is encased in a boat, it in itself is not caused by the abnormal circumstances which keep everyone trapped, but is caused by the people themselves. The passengers have degraded to the level of the worst aspects of humanity, they show little compassion for others, and drown themselves in debauchery. This may be an attempt to stay sane, and others have lowered themselves out of desperation, but it is still their depravity which has sunk them into this state of madness.
With an area the size of a small city, there are many places a murderer can hide, and it is up to detective Lament to find him, and to possibly discover the mystery behind this ghost ship which should've run out of fuel long ago. Lament is an honest fellow, and has some sense of justice still, so he goes below to find the answers.
At this point everything goes downhill, the story idea is good, but the execution is done to quickly. There are sudden scene jumps, the mystery is solved almost immediately, not to mention it is all just handed to him in one speech, and none of the characters are given a chance to grow in the least. This could have turned out an excellent commentary on human nature, yet nothing is learned in the end. It doesn't even go indepth into the wickedness of humans. For some reason there are also several variations to the art style used, and they do not fit together.