Eva has returned from her trip to Europe. Back at home, she receives a suspicious invitation to a dinner birthday party of one of her neighbors, without knowing that this is a romantic date arranged by his neighbor's tricky family which, to make things worse, has no food in the refrigerator.

A lonely and bitter French bookseller living in Mexico mourns and is haunted by the death of his lover until he finds a maths journal with a metaphysical formula that may allow him to bring her back while getting involved with the woman who sells him the book.