In Chicago, lonely architect Alex Wyler has a troubled relationship with his father Simon Wyler. In 2004, he buys an old glass house by a lake, designed and built by his father, and finds a message in his mailbox from the former tenant, the also-lonely Dr. Kate Forster, asking to the new resident deliver her correspondence to an address downtown. Alex meets his brother Henry in Chicago and when they go to the address with Dr. Forster's correspondence, they find a building of luxury apartments under construction to be delivered 18 months later. After exchanging some messages, Alex and Kate discover that she is living in 2006 and Alex in 2004. They fall in love with each other and try to figure out how to meet in person.—Claudio Carvalho, Rio de Janeiro, Brazil