[LaLaLand]

If you've never seen "The Missing" (BBC) then I highly recommend. Two series, both different cases of child abduction/disappearance and both amazing!

First series is set in France where a little lad vanishes, second series is about a British military family based in Germany where the teenage daughter goes missing. Second series is alot better than the first imo but both are still brilliant, tense, edge-of-seat, horrifying stuff.