Sure enough, Pierre falls for an attractive young woman, Flora (Fanny Valette), who is none-the-wiser of Pierre's real age.
Alex and Pierre end up comically in the deep-end as Alex is persuaded to physically stand in for Pierre's organised rendezvouses.
As is common to many farcical comedies, the film plays up the disparity between old age and technology, which is perhaps a little assumptive at times but nonetheless offers some rib-tickling comedy.
The film's strength lies in these moments of situational humour and the complex web of lies and misdemeanours that play out to some wonderfully awkward situations.
However, the film's lack of attention to characters other than Pierre and Alex make this a very male-centric story. In particular, Flora, who is so poorly drawn that the film begins to feel uncomfortably fetishistic.
The result is a burgeoning romance that feels emotionally hollow and is further let down by its clumsy ending.
Shame, because the intriguing set-up had so much promise.
Mr. Stein Goes Online is still worth your night out, but I'd advise you to leave the Bourgogne Pinot Noir at home.
Mr. Stein
Goes Online
Running time: 101 minutes
M | Offensive language & sexual references