Dead can Dance
Someone's been raising hell.
The last show you played¸ on Halloween¸ the opening band included a skeleton on banjo. You don't understand how no-one in the audience was freaked out or even seemed to notice. Its phalanges sounded weird on the steel strings. Your manager says that your musical powers impose a grave responsibility¸ so that you're obliged to discover who and how and why the dead are dancing¸ and put a stop to it!
A module for use with the system of your choice¸ but it makes most sense with Sweet Riffs and Power Chords.