Strange things are going on at the Paris Opera House: a mysterious phantom - a skeleton in dinner dress - is wreaking havoc amongst the singers and the backstage staff. When new managers take over, and dismiss the rumours of the Opera Ghost, the terror really begins. Who is the mysterious figure stalking the stage at night? How can he be everywhere at once, and enter and leave locked rooms at will? And what is his connection to the beautiful and talent young soloist, Christine?