You are expected to solve a bomb before it explodes in your face with the help of you friends on the line. But some error caused the lines to tangle up with the enemy's. Figure out who is lying and who is not to solve the bomb before the timer ends. 

Edit: I am adding a tutorials since some people have mentioned it and I couldn't add it to the game in time.

Tutorial:

You have to cut the correct wires to disarm the bomb. Some speakers are lying, some tell the truth. People that are liars, always tell the opposite of the truth. 

Example: Speaker 1 is a liar. If red colored people has a liar among them. Speaker 1 will say there are no liars among the red colored people.

After you cut all the correct wires, the menu will come down and you should be able to get to the next level unless you are on level 8 already.

I hope this helps. 

Good luck. (And of course have fun)

ESC -> Open Menu in game

F11 -> If you are having trouble with fullscreen :)