The Book Club

After a one-off raunchy encounter in Norway with another married couple, Joe and Helen have been keen to experience another since they returned home. The opportunity finally arrives when they meet Mike and Sarah on a weekend break in London. Are they reading the right signals? And are Mike and Sarah looking for more than friendship? Joe and Helen are determined to find out, and even more so when they are introduced to the other couple's intriguing 'book club' . . .