The Uninvited Guest of the Star Ferry (1984)

In the town of Seroa, a Korean immigrant's store has flourishing business and the natives get jealous. In order to buy out the store, they sell their goods at a lower price. One day, Lee Sang-kuk, who manages the restaurant his parents and sister Na-young left behind, is gunned down by a sniper. Han Sung-min starts to investigate Sang-kuk's murder.