Alma is struggling with the rapidly changing timeline and unable to focus on watching the kindergartners and also behaves inappropriately. Her father, a physicist, who wants her to find his murderer helps her understand more and suggests an Inception style trick (the handheld blackjack) to anchor herself in reality. Things have changed, pictures and furniture moved and there is something different about Sam.
As an episode - coasting.
As an episode - coasting.