Salma Hayek naked and then in skivvies and then shooting bad guys in a hotel suite. There's very little explanation but I think she's been enslaved in a whorehouse hotel suite for four years, contacted a detective and was going to turn in evidence against her slave lord, but the slave lord found out and he's sent a bunch of thugs to kill her.

Throughout the film Everly is in the hotel suite or the corridor just outside, fighting waves of bad guys until the boss finally arrives. Each wave of bad guys is distinctly different and there's some family stuff with her mom and kid (mom apparently thought she'd run off four years ago).

It's a good, stylistic shoot-em-up action film with a kickass woman protagonist.