Tunnel is currently streaming in the UK on Amazon Prime Video, and its case-by-case structure never gets in the way of the bigger story. Across 1 season, the show has had time to find its rhythm and keep it. Its 8/10 TMDB score, built from 74 ratings, reflects a title that consistently delivers. Choi Jin-hyuk's performance alone is worth the time investment. Put it on tonight on Amazon Prime Video and see for yourself.

Whatever else is competing for your attention this week, Tunnel is worth clearing space for. The plotting gives Tunnel its backbone, but it is the characters you come back for. A police detective from 1986 travels in time to the present to save his daughter. The writing gets a boost from Choi Jin-hyuk and Yoon Hyun-min, who sell every scene they're in. Tunnel premiered in 2017. Tunnel is at its best in the quiet scenes between the plot beats, where the character work actually happens. It rarely drops the ball, and when it does, it recovers fast.

If you cannot walk away from a good mystery, Tunnel will keep you hooked. Fans of Sherlock & Daughter will recognise the sensibility here immediately. A contained run means every episode is doing real work. Watch Choi Jin-hyuk work — it is a masterclass in the genre. Few crime dramas earn their twists this consistently.

Tunnel wrapped up in 2017 — and 1 season is available to watch from start to finish. Find exactly where it's streaming below, and TV Butler Pro's free voice app makes it effortless to track your progress as you go. Just say the name, and Butler finds it instantly, tells you which service has it, and remembers exactly where you left off.