I barely remember this so I looked it up: "Gus Kubicek is a depressed and overweight cartoonist who recently won a battle against Hodgkin’s disease. His caring sister Lizzie Pots , a nosy romance novelist, responds to his sadness by trying to set him up with a suitable woman. Yet to do so she must make him seem more dynamic and attractive. When Gus falls in love with Emily, he adopts the persona of Lobo Marunga, a leather-clad biker from New Zealand.(wikipedia)" - Well that seems reasonable.