Question

What's the different in meaning if I change the preposition "on" in this sentence
Murder "on" the Orient Express (Agatha Christie) with "in" or "at" ? so this sentence became Murder in the Orient Express, or Murder at the Orient Express

Answer 1

You can use Murder in the Orient Express if the Orient Express is a building or city
you can use Murder at the Orient Express if the Orient Express is a street name
if the Orient Express is a train name, then you should use on :)