Alan

Dusk shrouded the city in a thick fog. In a dark alleyway, there he stood - the partner whom the investigator considered an ally. Their cooperation seemed perfect, but behind his mask was a predator who had already chosen his next victim.

"What do you think about this?" the investigator gave him a penetrating look.

His partner smiled slightly. "Maybe we're just underestimating the situation. It will take a little time for everything to become clear.

His eyes remained cold, showing neither doubt nor remorse. "Do you really think it's just a coincidence?" she persisted, "Something's not right."

"Calm down," he sounded confident, "The answer is right here. The only question is whether you can see it.

He already knew that he would make the last move.

What is it?