Bone Heads Bar-B-Que in Willis, Michigan, is described as a skeleton-themed restaurant that has been the subject of ghost investigations due to a history of unexplained incidents and reported paranormal activity, leading to the notion of mischievous ghostly "tenants" who have been featured in various haunted history articles and books. The restaurant has had several ghost investigations by paranormal groups. There have been numerous unexplained incidents and occurrences within the establishment. Some sources claim the restaurant has been featured in haunted books and articles due to its spectral residents. The restaurant is known for its skeleton-themed decor and is often decked out for Halloween, contributing to its spooky atmosphere. Guests are drawn to the restaurant hoping for a unique, possibly unearthly, experience. The exact nature or origin of the haunting is not specified in the provided results, but it is attributed to "mischievous tenants" and a history of paranormal activity.