In 1920s Paris, amidst a vibrant expatriate artist community, struggling painter Nick Hart navigates the bohemian world of café society. Hart is commissioned by wealthy art patron Nathalie de Ville to forge paintings by famous artists. Though initially hesitant, his financial struggles and the allure of de Ville convince Hart to undertake the deceitful task. The protagonist's personal life is equally tumultuous as he harbors lingering feelings for his ex-wife Rachel, who is now married to an abusive and deceitful businessman named Bertram Stone. Rachel reciprocates Nick’s affection, which complicates their interactions and fuels tensions with her husband.

Entangled in a web of artistic deception and romantic turmoil, Hart must reconcile his moral integrity with his ambitions. The film's richly textured backdrop of 1920s Paris comes alive through encounters with notable historical figures and artists, as well as the pursuit of authenticity in art and life. The complexities of Nick's relationships and the dangerous consequences of his forgery assignment weave an intricate narrative that explores themes of love, betrayal, and artistic identity. As events progress, the stakes for Nick and those around him grow increasingly higher, leading to a tense and unpredictable climax.