Love -- and stinky cheese -- are in the air. Sophie Mae has accepted Barr's marriage proposal, and they're trying to keep her mother, Anna Belle, from taking over their no-fuss, no-muss wedding plans. But when Mom finds a cryptic suicide note that Sophie Mae's brother wrote two decades earlier, Sophie Mae reluctantly makes a trip back to her hometown of Spring Creek, Colorado to suss things out.
 
As she pokes around in other people's business while learning the finer points of artisan cheese making, a murderer strikes -- with a glass bottle of milk. Soon, Sophie Mae discovers that aging cheese isn't the only thing in Spring Creek that doesn't pass the smell test.