Derek Jacobi and Anne Reid lead a stunning cast in this heartwarming series. Alan Buttershaw (Jacobi) and Celia Dawson (Reid) are both widowed and in their 70s. When their grandsons put them online, they rediscover feelings for one another that are just as intense and beautiful now as they were when they were teenagers. The story of their relationship is a celebration of the uplifting power of love at any age. But this is also a story about family, and it's just as dark as it is comical. Both Alan and Celia's families come with baggage.