A wedding party is quarantined at a mountain lodge-and one of them may be a cold case killer. PI Jane Carson is maid of honor and hosting a mountain retreat wedding, bringing the Valleytown High School chorus ensemble together after eighteen years. To avoid the humiliation of going dateless in front of old boyfriends, Jane invites her boss at Grey Investigations as her guest. Coincidentally, the only unsolved homicide marring PI Robert Grey's law enforcement record is the murder of the chorus teacher's wife eighteen years ago. Due to a self-imposed quarantine in the wake of the Covid pandemic, Robert and Jane are confined at the mountain lodge with those who might hold the key to uncovering the killer. But at what cost? He'd promised to keep his investigation discreet and not disrupt the weekend. But when results from new evidence analysis uncover important clues in the cold case, Robert's lawman mindset kicks in and Jane and Robert stand at a crossroads between loyalty and justice. Which way will they turn? And how will the choices they make shape their future?