Stream If You Only Knew Online Free – Watch Full Movie from Home at 123Movies. . Loyal and hardworking, Kellie is the longtime assistant to Mark, a powerful land developer. She secretly harbors a crush on her boss who is clearly oblivious. He's too busy with his gold digging girlfriend and high profile projects to notice. But when a tragic accident occurs, the hard-nosed businessman seeks the solace and comfort of his biggest supporter.