Under One Roof (2002)

It's Sex and the City meets The Wedding Banquet for young San Franciscan Daniel Chang, living at home with his clueless, traditional mother. Desperate for a grandchild, she's eager to see him married and spends much of her time planning introductions to suitable Chinese girls for Daniel. But when she recruits a new lodger for the downstairs flat, Daniel finds himself falling for Robert, the hot Southern boy who's moved to the big city. Well, Robert's not a suitable Chinese girl - but is he gay? And does he feel the same way about Daniel? Daniel soon gets his chance to find out when the basement floods and his mother insists Daniel share his bedroom with Robert while the plumbers fix the mess downstairs...