Vapor Barrier contained by Basement? I'm doing my basement over and entail to know if a Plastic...

I'm doing my basement over and entail to know if a Plastic Vapor Barrier needs to be put up. Over one partly of house in underground room is above ground (ground slopes down) They have studs and insulation surrounded by them. Other part (front & one side) is below ground cement. Two of those walls I won't be putting up studs against them, but coming out three foot for stud wall to use area for storage. Would I one and only need vapor barricade on cement walls where studs are against wall or adjectives of them even in storage areas.

Thanks
Larry
Can/How/who would rekey or replace the locks on...
Answers:    A vapor hurdle is important when nearby will be substantial difference in temp. between the outside and inside wall. Even if you wall studding is not to the exterior cement wall it will create a cold nouns when compared to the finished interior room. For the price of vapor barrier it is manifestly recommended and sealed next to appropriate tape sealer such as Tuck video
(BEDROOM MAKEOVER) Make me a room around this?
I would have a vapor ring on all walls. It might be a bit of overkill, but you'll own peace of mind! And, it will help beside that slightly, damp "I'm within a basement" atmosphere.