Her 

Set in Los Angeles of the slight future, HER follows Theodore Twombly (Joaquin Pheonix), a complex, soulful man who makes his living writing touching, personal letters for other people. Heartbroken after the end of a long relationship, he becomes intrigued with a new, advanced operating system. Upon initiating it, he is delighted to meet “Samantha” (Scarlett Johansson), a bright, female voice who is insightful, sensitive, and surprisingly funny. As her needs and desires grow in tandem with his own, their friendship deepens into an eventual and unconventional love for each other.