Weird Electrical problems - What's causing it?

What is your question?

Out of the blue, my Volvo has started acting weird. Here is what has started happening: When I put blinker on to turn left, the dashboard says that the driver door is open and the over head light comes on every time the blinker blinks. The driver window does not go down (all other windows do) The driver door lock sometimes will unlock, sometimes won't with the FOB. The lock button on the door will sometimes work and sometimes won't. Some possible related issues. A few days prior to this all happening, one of the tail lights went out and I haven't replaced it yet. It also rained for the first time since I bought the car. Maybe water got in somewhere? But I don't even know what to replace or fix. Help.