The Signal Tower

Rockcliffe Fellowes is the tower man on a mountain pass. He lives a few hundred yards away with his wife, Virginia Valli, and their son, Frankie Darro. When Wallace Beery comes in as shift manager, he stays with them... until Miss Valli grows worried about the innuendos he keeps making. It all comes to a head one stormy evening, when Beery is liquored up and Fellowes is trying to deal with a runaway train.

Clarence Brown's movie looks like pretty much a standard programmer for a Universal film, but it has some nice touches to it, including a working knowledge of how switch towers actually work, and a pretty good arc from idyllic to thrilling. The cast is eked out with roles for Dot Farley and J. Farrell MacDonald. It's another competent production from Universal that still plays pretty well.