As a result of the coverage on the 19th, Park Si-yeon is scheduled to appear in the movie 'Abyss' (director Yoon Yeo-chang). 'Abyss' is a story about the struggle for survival of a human group in Abyss. It is a story that Lee Tae-sik, a counter-terrorist unit who worked as a secret agent of the NIS, struggles to find his wife, Lee Sun-hee, who is missing on the first anniversary of his marriage. Park Si-yeon plays Han In-sook, a mysterious taxi driver in the drama. Han In-sook is a person who makes a relationship with Lee Tae-sik, who jumped into Yanji, China, as a guest to save his wife. Through this work, he will challenge the acting of Korean-Chinese dialect. It has been about two years and three months since Park Si-yeon's special appearance on tvN drama "Postpartum Care Center," which ended in November 2020. Park Si-yeon spent a Self-restraint period in January 2021 after causing a stir in a Drunk driving accident, when he crashed a vehicle waiting for a signal while driving near Jamsil-dong, Songpa-gu, Seoul. At the time of the accident, Park Si-yeon's blood alcohol level was 0.097%, which is the level of cancellation of driving. Park Si-yeon was fined 12 million won. In particular, many criticisms have been poured into the fact that his Drunk driving is not the first time. Park Si-yeon's last film appearance is the 7th Knights, which was her first Hollywood entry in 2015. Domestic films have been 11 years since 'Ganjin' in 2012. It is noteworthy how the public will look at Park Si-yeon, who returns to the screen after a long time at the end of Self-restraint.