[1][2][3][4][5] Jae-sung, an aspiring actor who has hit rock bottom, prepares to commit suicide.

He later finds a marked date on a calendar with a location and learns that he (Jae-sung in reality) is an actor who is supposed to appear in a gangster-themed TV show as an extra.

Though he initially struggles as an actor, Hyung-wook excels in action scenes thanks to his real life skills.

One day, Jae-sung answers a phone call to Hyung-wook and meets with businessmen who ask him why Eun-joo is still alive.

After a picnic with Lina's family, Hyung-wook recovers his memory and finds Jae-sung and Eun-joo in his own apartment.

[6] The distribution rights of this movie was sold to nine countries including: China, Taiwan, Vietnam, the Philippines, the U.S.A and Great Britain prior to its local release on October 13, 2016.

[8] Luck Key had a great start and sold 1 million tickets in just three days of its opening.