When Hannah learns that her sister Michelle’s boyfriend, Detective Lonnie Murphy, is the prime suspect in a murder case, she flies straight home from a Los Angeles movie sound stage to frigid Minnesota. But proving Lonnie’s innocence will be harder than figuring out what went wrong with a recipe, especially with Lonnie’s hazy memory of the night in question. Hannah doesn’t know what to believe. Before everything comes crashing down on Lonnie like a heaping slice of coconut layer cake, it’ll be up to Hannah to rack up enough clues to toast a flaky killer . . .