In the 1980s, the HP Lovecraft Historical Society received a mysterious handwritten libretto for a parody musical called A Shoggoth on the Roof. That would be a Lovecraftian spin on A Fiddler on the Roof if you didn’t catch it. It turns out, the manuscript wasn’t just the creation of an off-kilter Lovecraft fan (actually institutionalized and unidentified in the documentary). His team came very close to producing the musical in 1979.