I remember seeing this movie when it was made for TV and the story line reminded me of one of my all time favorite TV movies , made in 1970, called "THE OTHER MAN". That film starred Roy Thinnes and the late Joan Hackett and is similar as the female lead has no idea that the man she has fallen in love with is really someone else and initially is trying to get revenge. This was a 10 rated all around, The score and the majestic setting in Big Sur, CA made it memorable. And the acting was first rate.
DANGEROUS HEART has much of the same premise, an innocent , naive woman who meets and falls for a handsome stranger who pretends to be someone else. Tim Daly goes from greasy drug dealer to suburban single by changing his clothes, washing his hair and shaving his beard. He then does his best to find out from the woman he initially seduces and ultimately loves where the money that her late husband stole from him is located. I rated this film a 7 because the rest of the supporting cast was very annoying. The girl who played Angel's moll and girlfriend was so over the top in her performance that it looked like amateur night at a high school play. The other pest was Joe Pantoliano who was definitely trying too hard. His drug dealer cum psycho character has been done much better on LAW AND ORDER etc. I found watching him very distracting. The story also has a lot of holes in it and the plot could have been crafted better.
It ends very much like THE OTHER MAN and cannot have one of those fairy tale endings but is more like a Greek Tragedy.
Tim Daly became my new heart throb after I saw this and confirmed this position with his performance in the OUTSIDER (a western that is a cross between THE ANGEL AND THE BADMAN and HIGH NOON but with some steamy sex).
If anyone ever finds THE OTHER MAN, let me know as I have been searching for years! That was truly one of the lost films of TV.