All Roads Lead to Heaven?

Do all roads really lead to Heaven? Most people think so. Alls you have to do is basically not be a bad person, and you're in like sin. Is that how it is? Buddha...Shiva...Krishna or God, it doesn't really matter whom you subscribe to, it's all the same...is that the deal? It makes perfect sense, but what's if it's nothing but a happy story, and not how it really is? What if there's only one way, whether it seems fair or not? I'd look into it. Choose wisely my friend.