Your partner detective sends you out to grab the two of you a coffee to continue work. When you arrive back, she looked very on edge and didn't even remember she sent you out to get coffee. After asking what was up with the detective, she replied by explaining the one case that they haven't solved yet was basically driving her crazy because she's missing one final piece to the puzzle. You hear her out and then eventually manage to show her one thing that she had not seen yet because it popped up while you was grabbing the coffee. With all the pieces to the puzzle. The two of you successfully make a massive break in the case.