Dying Light - Night-time Gameplay Walkthrough

At night, it is you who is at a disadvantage. Without daylight, the senses of the infected become more acute while their thirst for human flesh skyrockets. They run, jump, and climb, so there is really no place where you are safe anymore.
Slow, apathetic, and easily visible, the infected are not much of a threat in daylight. But this relatively safe state of affairs is turned upside down as the sun sets.