I don't think I've ever been as struck by the camera movement in a Fassbinder film as I was by that in this one. It makes this chamber drama seem less claustrophobic, but also more panicked, than it would otherwise seem. And, as the title suggests, it is pretty panicked.
Fassbinder's most frequent muse is Douglas Sirk, but here he seems to me more inspired by Nicholas Ray, especially by Bigger Than Life, with a father figure turning towards drugs as an escape from domestic drudgery replaced by a mother figure. This film also probably directly influenced Todd Haynes when he was creating Safe. But I think Fear of Fear is emotionally and intellectually richer than either it's ancestor or descendant.
Fassbinder's most frequent muse is Douglas Sirk, but here he seems to me more inspired by Nicholas Ray, especially by Bigger Than Life, with a father figure turning towards drugs as an escape from domestic drudgery replaced by a mother figure. This film also probably directly influenced Todd Haynes when he was creating Safe. But I think Fear of Fear is emotionally and intellectually richer than either it's ancestor or descendant.