Mae December runs a successful dog boarding business in Tennessee. When her neighbor, Ruby Mead-Allison, fails to pick up her unruly Pomeranian from Mae's kennel, Mae pokes around and discovers the woman's body. It is clad in one red boot, and there is a vehicle counting cord wrapped around its neck.

While delving into the mystery of Ruby's death, Mae encounters handsome Sheriff Ben Bradley. Together they find no shortage of suspects. Ruby was standing in the way of a project that would widen the road and make the area safer. Was she killed by an angry neighbor? Her estranged husband? Her disinherited brother? The sheriff may not appreciate Mae's amateur detecting, but he does respond to her as a woman. Meanwhile the murderer thinks it's time to put a permanent stop to Mae's meddling.

One Dog Too Many is the first book in the Mae December Mystery Series.