Léa moves to Montreal, leaving behind her best friend Marilou and her boyfriend, Thomas; when she starts her new school, she makes a blunder and gets noticed for the wrong reasons.

Léa befriends the queen of the simpletons while Thomas tries to make amends for his betrayal; seeking to integrate Léa into her gang, Maude decides to help her change her look.

To heal from her heartbreak, Léa decides to accept Éloi's invitation and attends a costume party; her presence doesn't sit well with the simpletons, especially Marianne, who tries to get closer to Éloi, but Alex only has eyes for her.

Léa decides to take her mind off things with Alex while Thomas settles his score with Sarah's boyfriend, but Léa is unable to let go; she accepts Katherine's help to put her past behind her by removing Thomas from her life.

Léa spends quality time with Alex while Marilou tries to clarify the status of her relationship with JP; Léa wants to keep her relationship a secret for fear of being seen as Alex's new trophy, but she still receives the wrath of her enemies.