Mario Luigi Leonardo Mengarelli was a Swedish/Italian dancer and actor.
A secretary at a publishing company, Birgitta, writes a novel, based on her secret love of her boss. She sends it anonymously to her own company, who decides to publish it. The book becomes a success. Birgitta's husband's mistress get hold of the script and confesses that *she* wrote the novel. Plot by Mattias Thuresson.
Italian singer Mario Vanni visits the Royal Opera in Stockholm and fall in love with ballet dancer Linda Corina.
The marriage of the newlyweds Gun and Emil is strained when Gun sings in a radio show and makes a breakthrough.
