When Mac - Shannon's new beau - first moved to Lighthouse Cove, he bought the historic lighthouse mansion that the town is named after. During renovation demolition, the bones of a teenage girl who went missing fifteen years ago were discovered. If Shannon has any chance of getting the renovation back on track, she'll need to tackle the cold case.

When home renovator Shannon Hughes suspects foul play in the death of her good friend and neighbor, she sets out to build a case for murder with the help of her new client, famous crime reporter and author Macintyre.