A Guy Faked His Death on a boat and he left his wife for another women. He also took the child. The women is convicted and she goes to jail for no reason . When she gets out she go and find him. Then she kills him.

"Double Jeopardy," with Ashley Judd and Tommy Lee Jones, released in 1999:

http://en.wikipedia.org/wiki/Double_Jeopardy_(film)