The main character of "Dexter: The Game" is the serial detective Morgan, who is a blood test specialist. The gameplay is about analyzing the crime scene and finding dangerous criminals. But Dexter Morgan is not your typical Miami police officer. It turns out that the detective leads a double life and his passion is killing people. However, Dexter's goal is not to innocent citizens, but to people he believes deserved to die. According to the detective, this is the only way to improve the leaky system of searching for criminals, where many of them avoid well-deserved punishment. The investigation during the game is used to find future targets that will go under the knife of the main character.

Dexter has a special code of conduct to help him avoid detection by other officers. Later on, the player will have to be discreet and kill in such a way as not to leave traces. Dexter must choose his victims carefully and carefully prepare the crime scene. It is also important to skillfully track the victims that can detect the main character. The mission then ends in failure, so you need to carefully plan all your activities. The key is to combine the evidence efficiently to ensure that Dexter will kill the right person.