Meet Mama: a true Southern woman with impeccable manners, sherbet-colored pantsuits, and four prior husbands, able to serve sweet tea and sidestep alligator attacks with equal aplomb. Mama's antics — especially her penchant for finding trouble — drive her daughters Mace, Maddie, and Marty to distraction.

One night, while settling in to look for ex-beaus on COPS, Mace gets a frantic call from her mother. This time, the trouble is real: Mama found a body in the trunk of her turquoise convertible and the police think she's the killer. It doesn't help that the handsome detective assigned to the case seems determined to prove Mama's guilt or that the cowboy who broke Mace's heart shows up at the local Booze ‘n' Breeze in the midst of the investigation. Before their mama lands in prison — just like an embarrassing lyric from a country-western song — Mace and her sisters must find the real culprit.