The story is a loosely adapted mixture of several classic European works: Gaston Leroux's 1910 novel The Phantom of the Opera, Oscar Wilde's 1890 The Picture of Dorian Gray, and Faust by Goethe/Christopher Marlowe.
Head entity: The Picture of Dorian Gray
Tail entity: Phantom of the Paradise
Relation (head \u2192 tail): based on
Inverse relation (tail \u2192 head): derivative work