From the publishers blurb:
Welcome to Muffelton. A frontier town in a land that has finally calmed down a little after having been ravaged by disease and civil war for decades. Established 8 years ago, Muffelton has been going strong as a waypoint for adventurers, colonisers and explorers. Unfortunately, disaster has struck. Two of muffelton's villagers have died in the last 2 weeks and the cause of death is unclear. Your players have come to investigate the deaths and find the cause and if necessary bring the guilty party to justice.
What your player's don't know is that Muffelton has become the newest hunting ground of a devil named Orzu'Ban. Orzu'Ban's devilish plan is to use the town's wishing well as a front for bringing in contracts. Contracts that transfer the ownership of the contractee's soul to Orzu'Ban just one day after he fulfills their wishes.
The town of Muffelton is filled with various interesting NPC's and offers plenty of role-play opportunities. There are plenty of sources of information the players can discover through investigation and fit together for the players to discover the truth, as well as red herrings to sow a little chaos. Lastly, a handful of challenging combat encounters is sure to make your pugnacious players happy.