The concept of mortality is central to Dual Alibi, a film directed by Alfred Travers, who along with Stephen Clarkson and Vivienne Ades crafted the screenplay from a story by Renalt Capes. The cast includes Herbert Lom, Phyllis Dixey, Terence De Marney, and Ronald Frankau; Stanley Black composed the music, and James Wilson handled the cinematography. The movie follows celebrated French trapeze artists, the de Lisl…