Teenage Fergie and his invisible sidekick, the ghost of a punk rocker named Sid, head to London to find Fergie's absent father while the Department of Extra-Usual Affairs, led by the irascible Dorothy Culpepper, and Fergie's mom face demons from hell both personal and literal. Fergie and Sid have arrived in London... and a whole pile of trouble. All Fergie has to go on in the search for his father is an old photograph and some snippets...