With hundreds flocking to her inaugural garden party, meticulous Lilly Jayne hasn't left a single petal out of place. But the picture-perfect gathering turns unruly upon the arrival of Merilee Frank, Lily's ex-husband's catty third wife. Merilee lives for trouble, so no one is surprised after she drinks too much, shoves a guest into the koi pond, and gets escorted off the property. The real surprise comes days later-when Merilee is found dead in a pile of mulch.