Elektra (2005) on Netflix

Elektra, once a student of Kimagure, a force for good, whose masters can see the future and even bring people back from the dead, is now a paid assassin. The enemy, the force for evil, at this time is known as The Hand, whose members use the dark arts. In this tale Elektra is given an assignment to kill a man and his daughter. However when the time comes to complete the mission she is unable to. The daughter is also being sought by The Hand, for she is known as a treasure that can tip the scales in favor of either good or evil. The Hand, who have the policy of "If we can't have her then no one can", send their own people to kill her. Elektra then allies herself with the Millers and helps to protect them from The Hand. The journey to the climax, the ultimate battle between good and evil for the treasure, has some interesting revelations, heading for a finale with an interesting twist.