The Big Hit (1998)

Melvin Smiley (Mark Wahlberg) is a passive and non-confrontational individual, constantly being pushed around by those he interacts with. He also happens to be a skilled hitman, working as part of a professional crime organization. Caught between a "normal" suburban life with his oblivious fiancee and a demanding second girlfriend on the side, his level of stress has reached an all-time high. When both of the women ask him for large amounts of money at the same time, he reluctantly gives in, but realizes he must quickly come up with an additional source of funds. The additional revenue opportunity comes in the form of an independent kidnapping plot, an action not sanctioned by his normal employers. When the kidnapping turns out to be more than Smiley and his associates can handle, things quickly degrade into chaos. With everyone turning on each other, Smiley must struggle to survive, both physically from those trying to kill him, and emotionally from the wrath of his girlfriends.