The Accuser and The Abyss

You are a detective who woke up with no memories and recollection of anything else but a case and your new partner. 

Though you find nothing is wrong, you realize  your thoughts doesn't go outside a strange confinement. 

You are to investigate a strange slaughter of a family by their daughter and her teacher. 

But soon you realize the inspector you are paired with could be more insane than the perpetrators involved. 

A linear story-rich visual novel with some choices. 

Can you escape the prison set by the warden of this world?