Okay kiddo, I know this might be a difficult topic for you to understand but I'll do my best to explain it in a way that makes sense to you.
Gosnell: The Trial of America's Biggest Serial Killer is a movie that tells the story of a man named Dr. Kermit Gosnell who was a doctor in Philadelphia. He helped women who were pregnant and wanted to have an abortion.
Now, do you know what an abortion is? It's when a woman decides she doesn't want to have a baby growing inside her anymore so she goes to a doctor to get rid of it.
Unfortunately, Dr. Gosnell was not following the rules that other doctors who do abortions have to follow. He was doing unsafe things that hurt the women who came to him for help. He sometimes even killed babies who were born alive during the abortion process. This is why he is called a "serial killer".
The police eventually found out what Dr. Gosnell was doing and he was put on trial. A trial is when people have to go to court to decide if they did something wrong or not. In this case, Dr. Gosnell was found guilty of hurting and killing women and babies.
It's important to remember that not all doctors who do abortions are like Dr. Gosnell. Most follow the rules and try to help women safely. It's also very important to remember that hurting other people is never okay and can have serious consequences.