Clash by Night is a romantic triangle drama by Clifford Odets which premiered on Broadway in 1941 and was later adapted to film and television. The title derives from Matthew Arnold's poem "Dover Beach" (1867):
Ah, love, let us be true
To one another! for the world, which seems
To lie before us like a land of dreams,
So various, so beautiful, so new,
Hath really neither joy, nor love, nor light,
Nor certitude, nor peace, nor help for pain;
And we are here as on a darkling plain
Swept with confused alarms of struggle and flight,