Meet Claire, who is having a lover's quarrel; Jacques, troubled by his ex's return; and Marie, ovulating while toasting Vincent with Simon.

Busy with work, Simon and Marie no longer find time for each other. Claire is looking for anecdotes for an article, Vincent focuses on a screenplay.

Claire helps Jacques at the bar. Vincent sees Louise again and remembers his past love failures. Marie makes Simon pay for looking at another girl.

Everyone is involved as Vincent prepares for Louise. Jacques gets back with his ex, causing a stir. Claire tries seducing a dentist Marie recommended.

Jacques considers a dating agency. Simon is surprised to learn that all is not well between his parents. Vincent and Louise have problems in bed.

The group visits Marie and Jacques' mother. Marie learns her father had a mistress. Vincent and Louise get lost, and Claire feels like a fifth wheel.

Claire has to write an article about perfection. Vincent and Louise split up. Simon does not know how to react to the news his parents are separating.

Claire trusts Vincent to keep a secret. Simon refuses a promotion without discussing it with Marie. Jacques invites the gang to watch the candidates.

Marie takes a pregnancy test in the middle of the night. Claire asks Vincent to be in a singles special. Jacques likes the idea of being “uncle.”

Claire breaks up with Max. Jacques' ex's unexpected arrival spoils his meeting with a candidate. Marie and Simon try to have a romantic evening.

Jacques ponders going back to his ex. Marie tries to settle her boss's niece's separation. Claire discovers that she no longer lives alone.

Simon begins his new role and realizes that there will be a price to pay. Vincent is approached by a film producer. Marie does not feel well.