Holly and her grandmother, Oma, are working their tails off to prepare the Sugar Maple Inn for an upcoming matchmaking festival for pet owners. While Holly has no interest in pairing up, Oma plans on playing Cupid and finding someone to warm her reluctant granddaughter's heart. Unfortunately, one man Holly does meet is cold - dead cold - and he has a personal letter from Oma in his pocket. As suspicion is cast over the inn's guests, Holly - with the help of her furry friends, Trixie the Jack Russell and Twinkletoes the kitten - must fetch the real killer, or she may soon have a date in court.