Callens shadow

It all started after one intense case. A sentence that little girl has said reminded him of something. Something important!

Ever since then he awoke in the middle of the night because of a flashback that seems to try to remind him of something, or someone? He however only thought of it as nightmares.
Since then he also started to get the feeling of getting watched. It doesn't feels like a threat though. But he supposed that's because of his job.
And sometimes he even sees a young woman in his room when he wakes up in the middle of the night. But to him it only was a sign of slowly getting insane.

That all however gets explained when his new mission went terrible wrong!