After the hippies and before the yuppies, between the advent of the Pill and the onset of AIDS, between the 'summer of love' and the 'winter of discontent', the newest game in town was sex. In mid-seventies London a group of friends play a dangerous game of open marriages, secrets and lies. "It's only sex, Ann. It won't hurt us," claims Lois, beautiful, talented and determined to get whatever or whoever she wants without being...