Shell's Home

After Shell's parents died in an car crash, he inherited the home they were all living in. Only a single floor, there wasn't much to it.
Unknown to him or his parents, a secret trapdoor was hidden in the middle of the kitchen, leading to a dark and horrific basement full of padded asylum rooms.
The house is located in a suburban area within Wisconsin, not too far from the Great Lakes which Shell frequents to fish.