Big brain time! Solving puzlles to escape a dream [Dreambound part 3]

Today we're checking out more Dreambound! It's time to put on our thinking caps and solve some puzzles to escape Mr. Floyd's dream, but just as we're about to leave we run into a man that looks an awful lot like our dead friend. If that's not strange enough, when we finally get back to the real world, a strange man comes to our house and insists he's staying the night. What happened in the past to put a strain on Noah and Mr. Floyd's relationship? Who is Ivan and what is his link to the strange murders