Please sign in to post.

Round trip on French trains?

I was going to see if I could book a round trip ticket to Tours from Paris.
the French site did not seem to like having the round trip done the same day.
Would I get a better price to book a round trip?
The train I want to take is the high speed train from Paris to Tours and back.
or do I just have to buy 2 seperate tickets?
Thanks

sncf.com