In a abandoned house where everything is messy and dirty. Rats and cockroaches living their and make home inside it. There is a lot of broken glasses everywhere.
A police officer with his partner having their night stroll in the woods because of a disturbing sound. Some joggers who want to jog in the woods heard a sound like someone is singing.
As what is like the joggers description, they heard someone singing out of nowhere and decided to follow the voice.
Both police officer find themselves in front of a abandoned house, where the voice is still singing. The haunting voice scared them a bit but they brave themselves and walk in...