François Truffaut's second adaptation of a Henri-Pierre Roche novel (the other being 'Jules et Jim') is also about a menage-à-trois although this time set in nineteenth century Wales. Claude (Jean-Pierre Léaud) an aspiring young French writer spends a holiday on the Welsh coast with an English family and falls in love with the two daughters Ann (Kika Markham) and Muriel (Stacey Tendeter).