Why do bad things happen to good people?

As we see in the novel No way out, good people like the family has been constantly getting bad fortune every since they moved to Bangkok. In Buddhism, everyone will experience karma in some point of their lives. Suffering occurs because of desire. In this scenario, Boonma’s desires to get a good life and move to Bangkok heavily impact his family in a negative way. While they are not bad people, they still experience pain and suffering. We could see evidence of them being good people and getting an negative outcome when the grandfather tried to spend his money to get sweets for his grandchildren but he eventually gets robbed and stabbed. There are more numerous evidence but at the end the family receive the worst case scenario. Buddhism explain that reincarnation is a thing that everyone experience before. In some past lives, people did bad things and their karma can translate to their next life. So this phenomenon can explain why Boonman’s family experience such a hard time. Simply because at any of his past life did a devastating decision that affect his present life. This cause his grandfather and Dam to die while leaving him alive to experience more suffer even though he tried to commit suicide.