Luke is trying to get asleep and forget about the day that he had had. However he wakes up when he hears the same ringing as before.
I warned You!
He horrified to realise that the figure is now standing over him in his house so he has nowhere to run. He tries to go back to sleep quickly thinking that its a nightmare.
He wakes up realising that the figure was gone and that he was alone. Thinking it was a dream he wakes up and goes to the bathroom doing his daily routine as if nothing happened.
When in the bathroom Luke finds a note on the side of the counter, much to his confusion it was the one that he got the day before. However when looking at it this time he finds the words I WARNED YOU on the opposite side of the paper
Luke looks up to find the figure from before looking at him from the reflection of the mirror, it is revealed that he has stolen his face and is going to replace him later. It also shows that the others haven't actually returned but they have been replaced.