Cases are like constellations. Each dot seemingly has no meaning and connection but if you connect them carefully, you can create a picture. – Lee Hyun Hello Monster Synopsis : Genius profiler Lee Hyun (Seo In-guk), returns home to Korea after something from a case he’s been sent triggers a memory he thought he’d lost forever. Unbeknownst to him, one of his team members, Detective Cha Ji-an (Jang Na-ra), has been investigating him for some time. She is aware that his father was murdered and his brother disappeared under mysterious circumstances involving a criminal named Lee Joon Young (Do Kyungsoo)…