Plot

Shin Joon-young (Kim Woo-bin) and No Eul (Bae Suzy) were a couple who got separated during their teenage years due to an ill-fated relationship, but meet again later in life. Shin Joon-young is now a top actor-singer while No Eul is a documentary producer.

No Eul had a tough childhood; her father died in a hit-and-run prompting No Eul to quit school and make a living for her and her brother. Shin Joon-young, on the other hand, had his life planned out for him. His mother wanted him to become a prosecutor; to follow the footsteps of his estranged father but an awful incident caused him to quit law school and become a singer-actor. The two reunite when No Eul was tasked to film Shin Joon-young's documentary. Joon-young initially gave Eul a miserable time before finally agreeing to do the documentary and even plans to win her heart back.

https://en.wikipedia.org/wiki/Uncontrollably_Fond

                                                   https://www.youtube.com/watch?v=JfsL7ztbOmQ