Looking Through Lillian (2001)

Conveniently numbed and estranged from her surroundings, Lillian sleepwalks through life. Paramount to her world is Gene, a wealthy disturbed businessman who has slowly become her benefactor over the years. When he unexpectedly leaves for a week to go skiing with his wife, Lillian is dragged out on the town by her best friend, Andrea. That's when she meets Luke, a mysterious smooth-talking writer who opens her eyes to the world, prompting her to take a long look at the life she's chosen for herself. When Gene returns, Lillian finds herself caught in the middle of a triangle. Ultimately she discovers that what appears on the surface to be true quite often is not. Her struggle for freedom and a sense of identity culminates in a conflict where the one love may not be the one you can trust and the habits with which one sleepwalks through life are not easily broken.