Although Eliza still refuses to marry Freddy Eynsford Hill, everyone around her seems headed for the altar. Not only is her cousin Inspector Jack Shaw about to wed his sweetheart, but Freddy's younger sister Clara is engaged, along with the niece of Henry Higgins. Another blushing bride is the sixty-year-old Duchess of Carbrey, who plans to marry a handsome fellow half her age. But when the groom is found dead, a jealous mistress is blamed for the murder. However, the death may also be connected to the stolen treasure of an Indian temple.

Disaster strikes next at Jack and Sybil's wedding. Soon after, the wedding reception of Higgins's niece takes a lethal turn. Someone is targeting bridegrooms, and the wedding of Freddy's sister is next. Before another bridal bouquet is tossed, Higgins and Eliza must track down the killer. Otherwise, Clara's bridegroom - and perhaps the bride herself - may be murdered before they can get to the church on time.