Ah, where to start? There are so many fantastic foreign thrillers in this collection that have slipped most people's radar. A few suggestions off the bat, check out 'A Prophet' for a challenging prison drama, 'Infernal Affairs' for a police thriller, and 'Gomorrah' for a youth drama!
A teacher lives a lonely life, all the while struggling over his son's custody. His life slowly gets better as he finds love and receives good news from his son, but his new luck is about to be brutally shattered by an innocent little lie.