Similar Stories
If this theme appealed to anyone (the woman with amnesia murdering her boyfriend/husband bit) I saw an episode of Boston Legal that seems to borrow from it. Hired Guns, s1e10. The amnesia theme is common in this movie genre of course, I just thought it may be interesting to someone, this specific a connection.
Just read Agatha Christie famously claimed to suffer from Amnesia in a weird domestic dispute that may have been a publicity stunt, no murder there though, just interesting..