Nele and Gianni have been married for ten years and their marriage has grown stagnant. With the help of a therapist, they decide to embark on a mission to add a little spark back into their sex lives, even if it means taking some big chances.

Nele and Gianni open up during couples therapy and reveals their hidden sexual desires. But, they find that they are on complete opposite sides of the spectrum when it comes to life goals; with one focused on career and the other on family.

Gianni and Nele’s arguments over having children results in separate therapy sessions. Meanwhile, Heinz organizes a camping trip in which everyone reveals their most intimate confessions; a momentous accident turns everything around.

As Nele’s career picks up steam, she talks to Gianni about opening up their relationship. However, when Gianni finds out who she wants to sleep with, his jealousy gets in the way. Meanwhile, a tragic accidental death affects the group of friends.

Nele grows impatient as her attempts to get pregnant with Gianni prove fruitless. She decides that what she really wants is sex -- with other men. Meanwhile, Heinz and Monika’s arguments about Timo lead to suspicions about his paternity.

At dinner, Nele and Gianni reveal to their circle of friends that they’ve decided to open up their relationship. With strict ground rules set, they embark on sexual trysts with new people, but find they may have underestimated their own emotions.

On the outside, Nele and Gianni appear to be enjoying their open relationship. However, on the inside, their jealousy grows, especially when Gianni enters into a relationship with his new boss. Meanwhile, Monika explores what attracts men to brothels.

Nele is ashamed of the emotional chaos she’s caused through her love affair with Timo, Gianni feels too old for Gloria. With their last couples therapy approaching, Nele and Gianni have a big decision to make about the future of their marriage.

Three couples in crisis: Elena caught Robert cheating; Heinz is at his wit's end with Monika’s depression; Nele and Gianni still live together in relative harmony but when Nele's former lover Sirio shows up, their domestic tranquility is threatened.

Monika wants a new life and her old hostess job back. Her boss agrees to hire her again - but only if she can get Nele on board. Will the two friends reconcile? Meanwhile, Elena is surprised when Robert makes a passionate declaration of love.

Nele and Gianni fall into an emotional trap when their post-divorce celebration crosses a major boundary. After Elena is caught spying on Robert, he surprises her with an invitation to dinner. Could it be for a marriage proposal?

Monika takes on a job as a night watchman, which leads to a conflict with Heinz. After Robert storms off, Elena fears that he is cheating on her again. And Nele has a hot affair ... with her ex-husband Gianni.

Robert is caught by surprise when Elena tells him she wants to get pregnant -- and she immediately tries to conceive with him in a public restroom! Monika has big plans for Mia’s business.

Nela spends time with Sirio but finds that she is still longing for her old life with Gianni. After an argument with Heinz, Monika sleeps in the shop and meets Robert. Could there be a love connection between the two?

Nele’s vacation with Sirio is put on hold when she discovers that her furniture is now in high demand. Elena confronts Mia about her relationship with Robert. And dramatic circumstances force Heinz and Monika back together.

Elena fights to keep her relationship with Robert - but it might be too late. After her first night with Robert, Monika considers leaving her husband. Nele visits Gianni at his campsite to see his new life - and to say goodbye.