A state of being under control of another person

Buck is controlled by Sam, directly or indirectly.
here is a list of reasons that he might be under control.
Buck is controlled by Sam Because Sam is threatening or blackmailing Buck.
Buck is controlled by Sam Because of Bucks love for Sam.
Buck is controlled by Sam Through the force of Sam's personality.
Buck is controlled by Sam Because of Sam's dependence and Bucks responsibility.
Buck is controlled by Sam Because of guilt Buck feels for a misdeed he committed against Sam in the past.
Buck is controlled by Sam Because Buck was the cause of Sam's need.
Buck is controlled by Sam Because of Bucks gratitude for things Sam has done for him in the past.
Buck is controlled by Sam Because Buck is trying to live vicariously through Sam.
Buck is controlled by Sam Because social or legal expectations or demands that Buck should obey or serve Sam.
notice that being under control of another could be good or bad.
 
for example. 
a person with unpredictable fits of violence may only feel safe under supervision.
a mother may form her life around her children and be content. 
a person may be in the care of a doctor.
on the other hand 
a child may feel suffocated by a smothering parent
a patient of a devoted doctor may secretly have the goal of committing suicide
person who is supposed to take care of Buck takes advantage of there position of power.
some stories where one persons power over another plays a central role
Cinderella
beauty and the beast
unleashed
one flew over the coo coo's nest
some plot situations that relate to one person holding power over another
escape
revenge
rescue
certain types of barriers to love, such as the parents wont allow two lovers to marry.
category:action