Point of No Return (1993)

"The government gave her a choice. Death. Or life as an assassin. Now, there's no turning back."

Hardened criminal Maggie Hayward's consistent violence, even in police custody, ends in the execution chamber. However, top-secret US government agent 'Bob' arranges a staged death, so Maggie can be elaborately trained as a phantom killer and subdued into obedience.