I love Korean dramas and have seen the UK version, this review is based on my opinion after watching both versions.

Life on Mars is a really good drama but has a totally different storyline from the British one. The premise is the same but the main storyline is different. I enjoyed the Korean storyline even though I felt some episodes dragged on a bit but by the end of each episode the cliffhanger made you want to watch the next episode.
The characters in both versions are well developed and the main leads are amazing with great chemistry. The casting was spot on.

I preferred the British one but that's because I come from the UK and can form an attachment to the 70s nostalgia (I found it hard to connect with 80's Korea) Also I watched that first so I knew how the Korean version was going to end and some of the spoilers.

In the UK there was a sequel "Ashes to Ashes" it delves deeper into that world and answers some unanswered questions from Life on Mars. I wonder if they will make a Korean version. I hope so as the Korean writers will be able to do that justice and that would be amazing.

I would love to know what others who have watched both think.