My Second Father Has Been Doing This for Twenty Years

Two boys in the late 1980s and early 1990s. A southerner and a northerner. They came together. In the south, Ah Sheng was an evil son. His father beat him severely, his mother finally died because of him, and his brother and sister-in-law rejected him. At this time he met A Dong, a northerner, and the two decided to flee the south. But when he was leaving, he encountered a thief on the road, and he became a thief himself and was caught. They lived in a foreign country and worked in a song and dance hall. Unexpectedly, there was a huge secret hidden in the song and dance hall, and a group of "gangsters" were waiting for them...