Why Sarah was having that moment where she was communicating with? The spirit of death. Because. The parents actually lost to Dave at a very young age and they were so curious as to know why the young boy died and what would have happened. The. Invested time and money into employing Sarah. To communicate with Dave and find out who killed him. And what could have led to the death and how he’s doing in the afterlife?
Then Sarah was in the middle of this. Medium. Kind of a thing. When she heard a loud bang right decider, it was actually an accident. An accident. I involve a couple. And another person, they eat each other on high speed and they died.
So. What happened was that. The spirit actually came out of those couples and the second person they had the accident with, who lost one person to making three now walked into the medium section of Sarah. And everything changes. Now we’re seeing Serial who is trying to communicate with Dave.
Source
But coincidentally. Three people already inside down medium rib with him. Anne is not going funny. She was not prepared for this and she has not actually seen this before.
Also she didn’t know that accident has happened behind them and son is dead. was she just have to stay focused on death while making sure she comes out of that medium experience alive