Two petty gangsters trying to elude their enemies join the French Foreign Legion.

Piernas de Seda is a 1935 American comedy film directed by John Boland. It stars Rosita Moreno, Raul Roulien, and Enrique de Rosas. Rita Hayworth had a small uncredited role as a dancer.

Carlos Argüelles is the son of a wealthy man whose only interests in life are business and making money. While trying to succeed in show business he falls in love with a dancer and they elope to marry. But success is not easy to obtain.

Ricardo Fuentes (Carlos Gardel) leaves Buenos Aires after loosing in horse races to go to Barcelona, where he plans to open a tango bar, a new concept of tango dance show and dance saloon. On the ship he meets Laura Montalván (Rosita Moreno) who happens to be a thief working with a thief pal. Ricardo watches them robbing a lady's bracelet aboard but decides not to report them because he has fallen in love with Laura. Once in Barcelona, he opens the tango bar but Laura's partner tells him he sold the bracelet and now needs to recover it to avoid both Laura and him going to jail.

In view of the arrival of his strict uncle, Alberto asks his secretary and his girlfriend to participate in a deception and reverse roles. But the entanglements follow one after another and the young man ends up falling in love with his secretary.

Carlos Acosta (Carlos Gardel), tied to a flirty wife and in love with another girl, watches fate work out a solution that allows him to return to his real love after trips to Paris and New York City.