It's the Summer of 1982, and Beth Sawyer is thrilled to have landed the title role in a play. It may only be in a fringe theatre in Shepherd's Bush, but it's the start she's always dreamed of.

It's the Summer of 2020, amid the global pandemic, and Tom Brookes is furloughed. Unable to face lockdown in a tiny city flat, he moves back to his mother's cottage in the sleepy Cotswold village of Stoatsfield-under-Ridge.

Neither of them expects an everyday train journey to throw their normal lives so spectacularly off-course.

This is the story of an extraordinary encounter between two people who should never have met.