Saturn Rain Water Leak Raining In My Car!?

Raining in my car!? - saturn rain water leak

I drive a Saturn Ion 04th Yesterday I had walked in the pouring work. I have found in my car and the roofing material between the window and the roof (if) had also not enough for the window or roof near a large water stains on the passenger seat and everything was wet. I do not know where to drain off. I poured water over the roof, windows, hood, but it once again began to leak. Oh, and if this is related to my interior light does not turn off!