Beer enthusiasts flock to charming Leavenworth, Washington, every year to enjoy the town's lively Maifest celebration. Craft brewers Sloan Krause and Garrett Strong are excited to debut their new line of drinks at the festival. They're looking forward to a fun, profitable weekend. 

Sloan's plans are derailed when she spots a familiar face amongst all the tourists. Marianne is the woman who could hold all the answers to Sloan's many questions about her mysterious past. Sloan needs to talk to her, but Marianne seems to be avoiding her. Why? When a local housekeeper is murdered and Marianne becomes the police's prime suspect, the brewer is even more confused. Why is Marianne in town? Does she hold the answers Sloan has been seeking for so long? 

When Marianne warns Sloan that her family is in danger, Sloan goes on high alert. To protect those she loves and figure out the mystery of her past, she must use her detective skills once more to find a killer. Marianne can't be the murderer—or can she?