The House of Two

The House of Two (here I would put SCP-XXXX) bears the form of a mid-sized house in the city of ■■■■■■■, ■■■■■■■■■. The house has two levels, the main floor and the basement. The house contains two abnormal entities, both vaguely humanoid and entitled to a different level of the house.
The first entity, referred to as The Surveillance (SCP-XXXX-1), is approximately 2.1 meters in height and refuses to get within one meter of a human. It has a vague body shape but has two, prominent glowing red eyes. Its body is mostly black, with the exception of the eyes. It is mostly seen at the end of the bedroom hallway on the other side of the living room to the kitchen and dining room, in which the side door enters into. However, the front door enters directly into the living room across from the bedroom hallway, making the sight of The Surveillance immediate once opening the front door.
Upon seeing The Surveillance, almost all subjects become frozen in place from ten seconds to a minute, due to petrification. What happens afterwards is almost completely dependent to the subject, but about 60% attempt to leave the house at extreme speeds, which usually leads to the subjects fainting. 30% of subjects start projectile vomiting, then fall into the 60% that attempt to leave. 10% of subjects miraculously defy expectations and slowly approach The Surveillance, which aggravates it and causes it to phase through the door, into the bedroom behind it.
The basement of the house is inhabited by The Casted (SCP-XXXX-2), roughly 1.5 meters in height and pale in color. Due to unreliable subjects, we are not aware of the facial details of The Casted, but it is speculated that it has inferior eyesight to humans. It has disproportionately long arms, about one meter in length.
The few subjects that have descended into the basement and survived reported The Casted constantly pacing around the basement floor in a squatted posture, as if it were anxious. Once The Casted notices the subject has stepped into the basement, it would produce a reportedly ear-peircing screech, as if someone was screaming directly into their ears, even if it was meters away. Some report it to be screaming words in english, when some describe it as unintelligible. The screeching is reported to be so loud that it can alter the vision of the subject, rendering it blurry or foggy. Most subjects quickly leave the basement and the house, but some don't make it out. It is speculated that The Casted can kill some with its screeches and eats them after they died.
For those who survived, severe mental health issues including depression, anxiety, paranoia, and insomnia were very common. Approximately 60% of subjects have committed suicide shortly after exiting the house.
Containment of The House of Two involves the construction of a wall bordering the house, with 24-hour security ensuring that only verified personnel can enter the premises.