After royally screwing up her first big opportunity to impress her boss, Zoé finds herself in the self-help group for Anonymous Sex and Love Addicts, where she meets Nele, Ben, and Dennis.

After finally breaking up with Yvonne, Dennis is faced with an emotionally challenging family event. The Love Addicts accompany him in order to protect him from any stealth attempts by his ex to win him back.

Zoé tries to distract Dennis from his heartbreak by dragging him to a singles costume party brunch. Meanwhile, Ben tries to save Nele when the party she's planned for the daughter of a celebrity client turns out to be a failure.

Zoé and Nele decide to switch personalities while they go on a double date together. Dennis tries to be a little more like Ben and discovers the wonders of Tinder. Meanwhile, Ben grapples with his feeling for the first time ever.

The Addicts face their problems within their own families, leading Zoé to a reunion with her mother. While Dennis and Ben try to support Zoé, Nele takes Louis on a weekend getaway to her parents'.

Ben moves in with Dennis and they throw a big housewarming party that quickly gets out of control. Just when things couldn't get much worse, an uninvited guest shows up.

The disastrous party has consequences: in the middle of a giant mess of their own making, the Addicts lose Anja. Zoé's secrets come out into the open, leading the Addicts to announce their friendship as canceled.