Four lifelong friends decide that their lives could change by becoming nasty and reading Fifty Shades of Grey in their monthly book club to get inspiration on how to handle sexual pleasure at an elderly age.

丈夫猝死後，家庭主婦敏子在社會的汪洋裡漂流。將屆六十歲的她，生活突然遭逢巨變，除了勇敢面對傷痛之外，還得對抗一直找上門來的麻煩。迷惘的心靈該何去何從？從細微的日常生活裡，窺見中年女人和現實拼搏的勇氣。