Why sleep at all? Jeff and Jane the Killers

It's been only three years since Jane was burned by Jeff and had built a living hatred for him. But they haven't seen each other for those three years, somehow always out of each other's sight no matter how hard they try to track each other.
Until....both of their missions end up in the same place. Jane gets caught in a fire, Jeff gets caught in the same fire. And finally, they're close to being caught, finally hunted down. Now, their only chance is to flee......and they're caught together.
Through the hatred they have towards each other, they have to find a way to work together and escape, or their lives could be at risk.
And in the process, they start liking each other.