Erotic Inferno, also known as Adam and Nicole, Adam & Nicole, and Naked and Willing, is a 1975 British sex film directed by Trevor Wrenn, and starring Chris Chittell, Karl Lanchbury, Jennifer Westbrook, Heather Deeley and Mary Millington.

Plot

When Old Man Barnard, a millionaire, is reported drowned at sea his gold digging sons Paul and Martin come looking for their inheritance. Arriving at the Barnard family estate they renew an old enemy in Adam, their father's butler. He tells them the Barnard mansion has to remain locked and bolted until the will is read. Begrudgingly all three men and their girlfriends will have to stay in the neighbouring farmhouse over the weekend. Unbeknown to him Adam is Old Man Barnard's illegitimate son, a fact Paul and Martin are determined to keep from him. Secretly they fear the whole inheritance will go to Adam. With their privileged lifestyles hanging by a thread the Brothers Barnard decide to pursue Adam's fiancée Nicole, reasoning that she will know where Adam has hidden the keys to the mansion, so that they can break in and destroy evidence of Adam's parentage.