It depicts a rare psychological state, so that in the first place the basic question arises as to how it was before.
The family does not have the necessary harmony.
Logic and rationality require us not to imagine these two couples in each other.
Even with three children, they do not have harmony together.
The film has a slight mention in the early sequences of the psychological state of the family, and it shows that as a result of the psychological conditions of each individual in the family, it results that a particular fantastic psychological pattern arises.
In the first and second section, everything is close to reality, and it promises a real story, but in the third curtain, and when Michael escapes from prison, everything goes exaggerated and out of nature.
That the audience remains drowned in questionless questions before drowning in the inflammatory atmosphere of successive murders.
How easy Michael ran away, how easy to kill, how fast he would go, how he would look for his sister, how much srrong and not die, and ...
The whole can not be a very good score because it was the source of the question rather than the source of the effect.
If it were to define a more realistic drama for it, especially in the final moments, it would have scientifically put its own impact on itself, in addition to being scary.