When Carl's past shows up at the wedding to threaten his and Maddie's future, and an inconvenient corpse threatens the present, Ernie is convinced that a ten-year-old murder mystery is tangled up in her new son-in-law's problems somehow. As usual, convincing Sheriff Howard to see the truth is a major problem, so it's up to Ernie and Susie to set things right before it's too late.