Night Has Come episode 11 starts with Mi-na dragging Yeon-woo out of the dispensary as Jung-won and Eun-chan follow closely behind. They are all curious about how Yeon-woo got the wound on his chest. They believe he got it when he attacked Na-hee, who was hiding in the ceiling.
Upon hearing the commotion, Jun-hee, Yoon-seo, and Da-bum rush to see what is happening. Jun-hee catches Da-bum smirking as he sees Yeon-woo being interrogated. The students convene, and Da-bum is accused of being a mafia along with Yeon-woo.
Yoon-seo and Jun-hee suspect him since they caught him trying to check the camera. It was a trap laid out by Jun-hee, Yoon-seo, Jung-won, and Da-bum fell for it. He claims he wanted to see the video and couldn’t wait for the others. He was only there to make sure the video camera was properly charging. However, Jun-hee and Yoon-seo don’t believe him.
On the other hand, Yeon-woo claims he doesn’t know how he got hurt. He woke up with the wound and hid it even from his best friend, Eun-chan, because he was scared of being suspected. He is the first to vote and votes for Da-bum. However, Jung-won asks why Yeon-woo didn’t mention his wound in the morning when no one knew the mafia was hurt.
Yeon-woo tries to save himself after Da-bum votes for him too. He points out that So-mi and Mi-na are suspicious as well. They had Kyung-joon’s keys, and everyone knew they didn’t like Se-eun. Mi-na insists she is innocent and kicks Yeon-woo in his wound before voting for him.
The suspicion game continues with each side pleading their innocence. Da-bum and Yeon-woo find themselves on the hot seat. While Da-bum gives excuses, Yeon-woo can barely explain why and how he got wounded. Jun-hee votes for Da-bum, and Eun-chan becomes doubtful of his friend. Expectedly, this breaks Yeon-woo’s heart, and he feels betrayed.
He questions if Eun-chan is the one framing him since they hid together. Yeon-woo finds the whole situation stressful and hurtful and is disappointed when Eun-chan votes him out. Eun-chan claims Yeon-woo is a mafia because he hid his wound from him. As the voting ends, Yeon-woo leaves and heads for the cafeteria, crying his heart out. This just might be the most heartbreaking moment of the show.
The students start leaving to hide, and Jun-hee follows Da-bum. He asks Yoon-seo to hide by herself since it is much safer. At the same time, Da-bum quickly heads to the second floor to see where the other students are hiding. Jun-hee spots him and continues following him.
At the same time, Yoon-seo realises that Jung-won knew exactly where Na-hee hid even without Jun-hee mentioning it. She confronts Jung-won, and the latter admits it is all true. She is a mafia, and Yoon-seo should have known better than to reveal she has caught on to her. Yoon-seo is heartbroken and starts crying, asking why.
In a flashback, we see that Jung-won was more of the brains in the mafia operation. She came up with the strategies while Da-bum killed and So-mi helped him frame others. Yoon-seo begs her to stop and end the game but falls asleep before Jung-won responds.
While Yeon-woo binges on the food in the cafeteria, Jun-hee confronts Da-bum in the toilet after finding more evidence he is the mafia. They get into a physical altercation as Da-bum accuses Jun-hee of never helping him when Kyung-joon bullied him. Da-bum says Jun-hee is worse than Kyung-joon and his crew since he stood by and did nothing. These words hurt Jun-hee, and he asks Da-bum to spare Yoon-seo and the others.
Meanwhile, Mi-na goes to hide in the cafeteria and runs into Yeon-woo, who attempts to kill her. Lucky for her, the execution starts, and Yeon-woo gets into a trance. Sadly, he dies by choking to death and is announced to be a citizen. Eun-chan is overwhelmed with guilt but reckons he better stay put since it is too late to save his friend. On the other hand, Mi-na hides in a restricted area in the cafeteria.
As soon as night comes, Da-bum tries to kill Jun-hee but is reminded about the mafia rules. He meets with Jung-won, and they decide to kill everyone left; Jung-woon agrees to kill Jun-hee and Yoon-seo while Da-bum handles the rest. So far, there are only four citizens and two mafias.
Da-bum already feels slighted that Jung-won didn’t tell him about the trap. He is doubtful that Jung-won will be able to kill her friends, but she assures him that it is the least she can do for them. He helps her put Yoon-seo in the freezer and plans to leave her there to die. While Jung-won goes to lower the freezer’s temperature, Da-bum steals Yoon-seo’s phone. Later, we see Jung-won entering the toilet where Jun-hee is.
He then proceeds to Eun-chan by suffocating him. He then kills Mi-na by bashing her head in with a weight lift. Amidst all these killings, he has a meal and receives a message from Jung-won that Jun-hee and Yoon-seo are dead. He, however, checks Yoon-seo’s phone and is surprised to see it still running. He asks Jung-won if she really killed Yoon-seo, and the latter dares him to come check himself.
Da-bum accepts the challenge and finds out that Yoon-seo is still alive after they argue back and forth about checking her body. He asks why Jung-won didn’t kill her friend. The episode ends with Da-bum about to stab Jung-won. By the looks of it, she hid Yoon-seo and Jun-hee in different places around the building to save them.
How did Da-bum have the stomach to eat while committing murders, especially right in front of Yeon-woo’s body, which was covered in vomit? He has truly disassociated and turned into a bigger monster than Kyung-joon.
Jung-won was unable to kill her friends and hid them to save them. We will find out if she dies and if Da-bum manages to kill the remaining two citizens. We also can’t help but wonder how and if anyone will escape, how will they explain the deaths of all their friends. Who will believe them? What life will they have after experiencing such trauma?
Lastly, Se-eun and the motive for this game remain a mystery. Is her death involved, and how did she orchestrate all these if she is dead? Also, where in Heaven’s name is the teacher that brought these students here? Why did he never return?