In "No Exit",Sartre described the four persons (souls) fallen into hell where there is no savage torture or inferno but a closed backroom with four of them locked in.Anything they do there should be done in the presence of others as they are souls.This is the pain of hell:although dead,the four souls of them cannot avoid the relationship with others and are repeating the problems of mutual suspicion and hurt that cannot be evaded in human world.
In the backroom,there is no mirror,no window,lights can never be turned off,and eyes of the dead cannot be closed,all of these make them live in the concrete reality without any possibility of extending their imagination by means of extend the space.When this closed space gives them no way back,what they can do is only to turn to the now on-going things that they have to face.The more terrible thing is that the dead can't die once again; they could in no way escape hell by Dutch act.The hell has deprived them of the right to Dutch act,and gives them no simple exit.
Therefore,I think "No Exit" does not mean that there is no way for life,but that in case of death is no longer possible and life is like falling into the abysm,they have to continue facing themselves in a state that they cannot go for Dutch act even if they are desperate.
【FYI only】