Min is an illegal Burmese immigrant living in Thailand who's contracted a mysterious rash. His girlfriend, Roong, and an older woman, Orn, take him to see a doctor. But the doctor is unable to do anything because Min is forbidden to speak, since he might reveal he is Burmese. Nonetheless, as is customary in Thai hospitals, some medicine is prescribed.
Orn is not satisfied, however, and she stops to buy some more supplies and then goes to her husband's office, where she concocts some lotion made with from store-bought creams and chopped vegetables and instructs Roong to slather it on Min.
Roong works in a factory, painting ceramic figurines. It's painstaking work, and she does not want to work after having worked overtime the day before. She feigns an illness and takes off with Min. She drives into the countryside, with the plan of having a picnic in the forest where she and Min can make love.
Orn, meanwhile, is longing for love. She steals her husband's motorcycle and goes into the jungle to meet Tommy, a worker at the factory. They have sex just off the roadside, but are interrupted when the motorcycle is stolen. Tommy chases after the thief and disappears.
Unsatisfied, Orn wanders deeper into the woods and stumbles upon Min and Roong, who have just finished making love.