Saint Marie Heritage Society celebrate the island's history with a meal, but all the guests end up with food poisoning. When the president of the society dies from a significant amount more of the poisoning, a murder investigation begins, with Humphr... (more)ey looking at the guests motives. Only an hour before his death, the president rang Humphrey saying somebody was trying to murder him. Humphrey learns that the president's son argued with him just hours before his death, while the society's secretary, Teresa, was stealing the society's funds. As he continues to work to solve the mystery, Humphrey's strong feelings for Camille peak.