Celia Dawson和Alan Buttershaw在少年时曾有过一段朦胧的感情，但无常的命运将两人分开。60年后，这对年逾古稀的鳏寡老人通过，这对年逾古稀的鳏寡老人通过孙子们的帮忙在脸书上重温旧情，且一发不可收拾。二见钟情的两人决定结婚，可不省心的孩子们并不看好这段恋情，也给他们找了不少麻烦。究竟二人能否突破阻碍终成眷属？看老戏骨Sir Derek Jacobi和Anne Reid如何共同演绎一段温馨浪漫的黄昏之恋。

　　Gillian is asked on a date by personable customer Gary but he has an alternative motive. He believes that Alan is his father, as a result of a brief fling with Gary's m other Mary, whilst he was still married. Advised by Caroline Gillian tells Alan, who admits it and prepares to see Gary though he is also concerned for his friend Harry, who has to sell his house to settle a court claim. Caroline meanwhile is planning to marry the pregnant Kate, leading to embarrassment for son Lawrence from homophobic fellow pupils. She tells Kate that she feels obliged to tell Celia Alan's secret whilst Alan himself meets Gary in town.

　　故事发生在萨福克东部的一个沿海小镇上，一位名叫劳拉妮的女孩失踪了，数日后，人们找到了她早已经冰冷的尸体。凶手没有留下任何的蛛丝马迹，警方无从查起，这也就意味着，这个小镇里的居民们中，很有可能就隐藏着一位变态的杀手。　　罗斯（赫米奥娜·诺里斯 Hermione Norris 饰）带着两个孩子杰米（阿历克斯·阿诺 Alexander Arnold 饰）和李维（艾丽·巴姆博 Ellie Bamber 饰）过着相依为命的生活，家里即将迎来一名新的成员本（马丁·克鲁勒斯 Martin Clunes 饰），整个家庭本来应该沉浸在假日的欢快气氛之中，但某日，罗斯偶然在杰米的房间里发现了一双染有红色污渍的鞋子，这让她不得不开始怀疑，杰米和劳拉妮的命案是不是有什么关联。