When a festive Christmas party turns deadly, a single mom and a brooding stranger must unravel a chilling mystery before the killer strikes again.

The holiday season is in full swing in Clam Cove, Maine, where twinkling lights and carols set the scene for the library's annual Christmas party. ER nurse Nina Reyes is looking forward to a peaceful week off with her daughter, Ana, and their mischievous Golden retriever, Ginger. But when the town librarian collapses, poisoned during the festivities, Nina finds herself pulled into a deadly mystery.

Still recovering from a life-altering accident, horticulturist Kyle Walker is drifting until fate throws him into Nina's path. Despite their differences, her determination and his keen eye make them an unexpectedly strong team. As they investigate, long-buried grudges surface, and the motives, ranging from greed to revenge, run deeper than they imagined.

With danger mounting and sparks flying, Nina and Kyle must stop a killer before they become the next targets.