A cabaret singer who discovers the monster is a singing flea named Francœur. She hides him, stages a fake death to protect him, and eventually falls in love with Raoul.
Lucille acts as the primary guardian and shelter provider for Francœur.
Lucille and Raoul develop a romantic relationship after resolving past tensions.
Lucille and Emile cooperate to safeguard Francœur from public exposure.
Albert is employed at the venue where Lucille works.
Pâté's official duties directly interfere with Lucille's secret.
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