xxxHOLiC Movie: Manatsu no Yoru no Yume

Summer break has arrived, but while his other classmates are out having fun, Kimihiro Watanuki continues to work as compensation for the eccentric Yuuko in her shop. With the spirits and supernatural phenomena that bother him lessening, he pays his dues by cleaning, cooking, and doing whatever else the apparently lazy Yuuko needs. Watanuki, however, gets involved in a new predicament when Yuuko receives a mysterious invitation to a mansion whose owner seeks Yuuko's wish-granting ability. When he, Yuuko, and his classmate Shizuka Doumeki make their way to the peculiar residence, they meet others who were summoned by the same strange invitation. All of them are collectors of various unique items, drawn there by the chance to expand their collections. But as the collectors begin to disappear one by one, Watanuki and his companions must solve the mystery and put the case to rest, or find themselves in risk of danger. Yuuko receives a letter from an unknown sender. It is an invitation to an auction. Seven avid collectors were invited to an old mansion. They all admit that they accepted the invitation to complete their collections. They waited for the host, but he does not make an appearance. And one by one the collectors disappear. The strange host and a mysterious girl. A night where odd things happen one after another. What is being auctioned? Who is the host? The cunning and foolish people who are obsessed with "possessions" and the host's "timeless" passion. What is waiting at the end of this enigmatic series of riddles? And what is the conclusion of the sad love story behind them? Mystery leads to mystery, and reaches the unexpected!