Friday is the final night of ImprovBoston’s Double Feature of one-act plays, with both filled with campy dread.

In “The Devil’s Horns,” a Christian music festival is thrown into chaos when a gang of hard-rocking, Satan-worshipping bikers roars into town.

In “Turning Out the Lights,” a hard-boiled lady detective takes on a murdered kingpin, corrupt cop and gaggle of scantily clad burlesque dancers.

The plays begin Friday at 8 p.m. at ImprovBoston, 40 Prospect St., Central Square, Cambridge.  Call (617) 576-1253 or click here.