Dave is convinced that his knockout girlfriend Jamie is cheating on him, despite his best friend Victoria's reassurance that it's all in his head. When his life begins to unravel, Dave's suspicions overwhelm him and he stumbles upon a discovery that turns his world upside down. Dave is shocked to learn that his girlfriend is the leader of a conspiratorial group of ex girlfriends, whose sole purpose is to torment him and ruin his life. Dave soon finds himself tumbling through a series of adventures as he attempts to unveil the truth, all while getting his life back on track. Dave ultimately pieces the puzzle together and finds out the hard way that sometimes true love is worth fighting for.