Everybody loves a mystery, especially Barbie! She's always hot on the trail of some exciting case, collecting clues and using her smarts to save the day. But for Barbie, the best part about solving a mystery is getting the chance to help others! Broadway producer Barbie is doing research for a play at the Manhattan Central Library. But soon she is piecing together ghostly clues that have everyone thinking the library is haunted. Leave it to Barbie to solve the mystery - and just in time for opening night!