The Love Punch (2013) on Netflix

Richard and Kate are a divorced couple who have an amicable relationship. Richard who's about to retire learns that his company's assets have been frozen because it's under investigation and that includes the pension fund. When the owner goes out of the country, Richard decides to pursue him and Kate goes with him. When they learn the man doesn't care about the employees, they decide to get the money some other way; by stealing the diamond he gave his girlfriend. So they follow them and Kate gets close to the girlfriend.