A scientist travels and go to antartica. there he finds a passage through another dimension.

he enters in it and absolutly nothing changes. he think finally it was nothing. go back to his home where everything seems to be the same except... that he see himself. yes this other dimension is the exact reproduction of our earth and now he is on this reproduction which includes himself living in this dimension too

so he cant do nothing. his second him is shocked. doesnt understand a thing. think he went mad, and commit suicide. than he mask all this so he can live normally with his wife.

so he go to finally see his wife, when he see that everything in this dimension was the same EXCEPT his "himself" wife

so hes fucked up. he commits suicide too, which makes a whole in the universe because of a life belonging to another dimension that dies in a different one. everything crashes and the universe implodes.

end of the story