Part 1 and part 2 of Adrenaline are meant to be played simultaneously.
The lights in part 2 are meant to match up with part 1 when the male lead presses the emergency lights. This was meant to bring out the adrenaline built up inside of them as tension builds between the two leads. This video plays with the juxtaposition of slow movements and the fast paced flashing of lights that represent the feeling of adrenaline inside of them.
Script and shot lists below: