MBC’s “ Doubt ” is racing toward its finish! “Doubt” is a psychological thriller starring Han Suk Kyu as Korea’s top criminal profiler Jang Tae Soo), who unexpectedly discovers that his daughter Ha Bin ( Chae Won Bin ) is hiding a secret related to a murder case that he is investigating. With the drama’s series finale airing tonight, here are three remaining questions to be answered in the final episode: Although many shocking truths came to light in the latest episode of the drama, the identity of Lee Soo Hyun’s murderer—and what really happened that fateful night—have yet to be revealed. Meanwhile, the new revelation that both Ha Bin and her mother Ji Soo (Oh Yeon Soo) were at the scene of the crime on the night Lee Soo Hyun was killed raised new questions about their involvement.

Tae Soo initially suspected his unusual daughter Ha Bin of murder, and he later deeply regretted his own suspicions. Not only did his doubt completely ruin their relationship, but he also believed that it played a part in his ex-wife’s death. However, despite Tae Soo’s belated decision to trust and protect his daughter no matter what, Ha Bin remained determined to seek revenge for her mother’s death.

Will Tae Soo and Ha Bin be able to avoid tragedy and live an ordinary life together as father and daughter? All three members of the profiler team crossed the line during their investigations. Tae Soo hid the fact that his daughter was connected to the case and broke the rule.