One day, five wedding ceremonies, one venue. On this auspicious day, Yamai Takako and the other staff from a wedding planner company have to deal with all ceremonies. Everything seems okay, until a threatening note arrives demanding them to call off all ceremonies. Terrible things start happening to ruin their preparations. Just who is the culprit behind it? Suspicious people appear one after another while the secrets from each couple and their guests are revealed one by one.