I saw this on Danish tv. It’s based on Lynda La Plante’s book – I remember way back a British series based on the same book (I looked it up – it is from 1983, that’s 40 years ago! – IMDB). See more at Rotten Tomatoes.
4 woman are made widows after their respective husbands has been killed in a heist the tried to pull of together. Now the widows are forced to come up with some money by doing a heist that was planned by their husbands.