Crazy People (1990)

Emory works in advertising and is beginning to crack up. His latest idea is honesty, e.g. "Volvos: Yes they are boxy, but they're safe". This doesn't go down too well with the boss, so Emory is sent to a psychiatric hospital to "recover." Meanwhile, back at the office, Emory's work is accidentally sent to the printers. His ads are a huge success. But now Emory has fallen for another patient, Kathy, so he doesn't want to leave.