Point of No Return (1993) on Netflix

A gang of armed drug addicts breaks into a drug store to try to steal drugs to fuel their habit. However, the police arrive too soon and all addicts but one are killed along with the store owner and several police officers. Maggie, is sentenced to death by lethal injection for killing a police officer; however, she wakes up after the execution to find that she has been spared in order to be trained as a government assassin. After a dramatic transformation, she is allowed to leave the training facility and start a new life for herself, on the condition that she always be on call for the government. However, she begins to discover that there is more to life than she had previously thought and soon begins to wish she could escape from her obligation. But the government isn't so easy to quit ...