No, quantum mechanics is NOT 'just a story'; it's the best interpretation of sub-Newtonian scale mechanics we currently have.
I'm not going to tell you that it's right; I don't know that and any scientist worth his or her salt will tell you that there are many parts of this model that we just don't understand all that well. The point is that in science, you work with the best theory you have at the time.
In this case, it's quantum mechanics.
Whether I like it or not, even though I have reservations about this theory, I have to admit that this theory conforms to observations extremely well. I can't just toss out the theory because it sounds a little counter-intuitive in places and can be inelegant; the only way I can get rid of QM is to replace it with something better.
That's perhaps the most important point here; QM was not invented as a story that all of science just latched on to. It was an attempt to explain phenomena that science could not adequately explain to the same degree possible with this theory. Just like I say that QM would have to be replaced with something better, QM in its time completely replaced Newtonian mechanics as an explanation of how the universe works. It was more complete than Newton's laws of motion in that explained variations between the laws and observation. In that sense, QM has earned its position in the scientific pantheon.
I will admit that I look forward to the day when it is replaced with a more complete, more elegant theory that doesn't have the quirks that QM does. But, until that day comes, I have to accept QM as the best explanation we have of what it purports to describe and as such is to be respected as the work of many intelligent people trying to explain a set of observations that could not be explained before its existence.