Puglia, southern Italy, around 1400. A convent is invaded by the Tarantula cult, whose fanatical and crazed members desecrate the sacred place by committing obscene and bloody acts.
A bounty hunter name Amen is hired by a group of nuns to recover stolen money. The nuns are female desperadoes in disguise, who want the booty pillaged by an outlaw named Catapult and his gang.
