Not sure if this is how you are supposed to play the game, I don't know Swedish, so that made this a lot harder. Luckily, I found a walkthrough for the Dutch version, and I followed exactly everything it said. Maybe some missions were unnecesary and there was a lot more easier way to beat the game.

As for the ending, it seems the game bugged or something. When I got out of the circus I expected the Viola sisters cutscene to appear, which didn't happen. I tried doing some misc. missions and completing the last diplomas and that seemed to work. The only problem is that the cutscene appeared at the same time I tried to talk to McCoy for the Photo Diploma. Because of that, even though I completed the map and talked to him again, the game wouldn't give me the diploma. Since I completed the objectives anyway, I stopped the timer when I finished talking to McCoy, at the moment he was supposed to give me the diploma.

Also for the cellphone mission I had to restart the game since I wouldn't get the call to start the mission.