S2·E23 The Maestro

A famous dancer, Anton Pascola, is crippled in an accident before completing his masterpiece, ""Shiva."" He obtains a cursed symphonia (music box). Using it, he can have students dedicate themselves to the dance, and they then begin to enact the parts of the dance. However, each one dies shortly in a frenzy of dancing. A daughter of one of Jack's friends is enraptured by Pascola. Ultimiately, knowing of the curse, she herself takes on part of the dance to help Pascola but it's still not enough. Ultimately, Pascola himself takes on the curse, which allows him to dance despite his crippled legs and give his greatest performance even though he dies in the process.