[3] The story links together the experiences of several EU assault team members working different night shifts.

During their shifts, they already encounter all kinds of unfathomable dangers and challenges, but the true test of their endurance lies in the endless temptations that they face in the darkness of the night.

With their willpower slowly weakening as the night wears on, their self-protection and restraint are also in danger of suffering serious blows.

[9][10] A behind the scenes video clip was posted on YouTube on 30 November 2013.

[11] The first trailer was released on HKTV's YouTube channel on 26 October 2014.