Considering the list of characters that MrPalmer said would appear in this update and Anna's surprised face, there are several possibilities:
1.- Chris. I don't think so. He is going to go to dinner later, Anna knows it, I don't think the surprised face is because of Chris. On the other hand, if Chris has arrived in the afternoon Rob or Darren would no longer have a chance to interact with Anna.
2.- Darren. Anna's surprised face would be justified. Darren would have spoken with David and would go to see his daughter-in-law, we will see with what purpose
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3.- Rob. My bet. Rob is given to appear by surprise, the day before he was nervous about the movements of Chris and Leonard. Otherwise his intervention would only be by telephone, as in the previous day.
4.- The knock on the door is from Darren or David (maybe even though he still lives there he knocks on the door to avoid problems with Anna) and behind that huge door there is someone not so good-natured knocking on other things. Anna's face can also be interpreted as panicked surprise.
1.- Chris. I don't think so. He is going to go to dinner later, Anna knows it, I don't think the surprised face is because of Chris. On the other hand, if Chris has arrived in the afternoon Rob or Darren would no longer have a chance to interact with Anna.
2.- Darren. Anna's surprised face would be justified. Darren would have spoken with David and would go to see his daughter-in-law, we will see with what purpose
3.- Rob. My bet. Rob is given to appear by surprise, the day before he was nervous about the movements of Chris and Leonard. Otherwise his intervention would only be by telephone, as in the previous day.
4.- The knock on the door is from Darren or David (maybe even though he still lives there he knocks on the door to avoid problems with Anna) and behind that huge door there is someone not so good-natured knocking on other things. Anna's face can also be interpreted as panicked surprise.