Most members of the Muldoon family are part of the Boston police force in some way or another. Not long ago, the youngest Muldoon brother, Tommy, got his badge. Armed with an eye for detail, fierce courage, and his trusty rifle, Becky, Tommy is dedicated to law enforcement... but when he was loaned out to the Sheriff's Department in Arkham, he found that he was not prepared for the bizarre crimes cropping up in this strange town. Even so, whether the crime scene is a smoky speakeasy or a bloodstained altar, Tommy will not rest until he can bring the culprit to justice.