The Adults (2010)

An undercover, government assassin meets a beautiful computer tech that is recovering from a break-up, he falls in love and trades his exotic life for domestic bliss. Three years later, on his birthday he finds out that he is the target of a multi-million dollar hit. And the hired killers have been stalking him for years, and could be anyone. Now they are on the run, their lives turned into a paranoid game, all the while trying to save act normal with his in-laws and neighbours.

Unfortunately the movie The Adults is not yet available on HBO Max.