The Red House

Twenty years ago, Joseph Flowers cold-bloodedly killed his parents and younger brother, and then spent the night at a friend's house as if nothing happened, working on his computer game. In the morning, he crashed his car into a tree and has been in a coma since then, and their family farm became known as the Red House. The place where the walls were drenched in blood.
Only Eva, Joseph's younger sister, survived that night. She was the only witness to the murder of her family, but she still does not understand what drove her brother to commit such a terrible crime.
Now an adult, Eva is forced to revisit her memories as new evidence emerges in the case. Moreover, there are rumors that that night Joseph created a hidden level in his game, which holds the key to the truth about the Flowers family's murder.