Totalitarianism is a form of dictatorship in which control expands not only on the collectivity, but even on the individual.
Structure
The state is ruled by one single mass party who has a clear and specific ideology that it may comes from both the far-left and far-right and is a politically irresponsible oligarchy.
Characteristic
A totalitarian state has control over information and comunication and uses these things to psychologgically manipulate the individual through propaganda and brainwashing. Sometimes, it uses even the police or law enforcement organizations to control the individual.