Yesterday I was searching for shows on Netflix that matched Law & Order and I discovered Line of Duty.
Line of Duty is a crime thriller series based on a police Anti-Corruption Unit in the UK. Basically, police investigating other police.
I started watching and just couldn't stop. It's just one of those series. I watched back to back episodes until midnight when I forced myself to go to bed.
The end of Season 1 was such a mind-fuck. Seriously. You've got to watch this. It's gripping TV. You will binge-watch it.