Wolf Gang

S1, E4: Luke is falling behind on his music work at school. The Watsons organise a tutor to get Luke back up to speed, only this being Scream Street, that tutor is a ghost, and not just any ghost - it's Wolfgang Van Mozhoven, the greatest composer that ever lived (or so he says). Luke talks the ghost into taking over his body and actually doing the performance exam for him. It all goes well. All too well. The ghost likes it so much he then refuses to leave. Luke (or rather Wolfgang in Luke's body) is going to top the bill in the school concert. Can Cleo and Resus force the deranged composer out of their friend's body?