The Lustful Vicar (1970)

During a witch trial in the seventeenth century a woman is accused of being a witch and burned at the stake. The witch curse the village priest who pushed through the accusations and promises that her offspring will avenge her. During the Caroline the priest's son take over as vicar of the congregation, and the daughter of the witch bewitches him so that he suffers constant erection. This is off course very embarrassing for the vicar. The local women has to step in and try to set things right.