It's a drama but since it's full of suspense it feels like a movie, same as death note with two leads on the same level chasing eachother

In both dramas two very intelligent people chase eachother and you don't know who'll win at the end, there are also two death note movies which are as good as the drama and having watched the drama and the movies I can say that the plot never gets boring even if you know what'll happend because there are quite some changes.

Both dramas are full of suspense and in both dramas you'll find out the whole, real truth at the end and it probably will be unexpected