Sean Gilman’s review published on Letterboxd :
The most-underrated film of the festival thus far has got to be Heiward Mak's Uncertain Relationships Society. This is the fourth feature by the Hong Kong director (in addition to writing her own films, she also co-wrote Love in a Puff, itself one of the great romantic comedies of the last decade, with its director Edmund Pang Ho-cheung), though she remains largely unknown outside of Hong Kong as far as I can tell (she doesn't even have a wikipedia entry). In preparation for this festival, I sought out her earlier film Ex, from 2010, which my wife and I both really enjoyed ("I like her. She's honest." pronouces the wife). Ex followed a pair of couples from a chance encounter at the airport. One woman breaks up with her boyfriend and goes off with the other couple, the man being her own ex-boyfriend. She stays with them for awhile, while remembering her previous relationship with the man, her boyfriends after the original break up, and her meeting and falling in love with this latest boyfriend. We experience it all in a series of non-linear flashbacks, usually from the woman's point of view but not exclusively. In the end, the film becomes less a love story than a coming of age tale, as the woman begins to assert her independence from romantic influence and sets out into the world anew.
Uncertain Relationships Society works almost exactly the same way, except with approximately three times as many characters and an even more densely-packed flashback structure. We follow the characters from their last year of high school (2008) through the present, as the cast of mostly unknown actors grows up, at least a little bit. Each character is in love with someone who doesn't quite love them back, while each is also loved by someone they don't quite love in the same way. It's a dizzying concept that Mak handles so naturally that the transitions and leaps in time and space and relationship always remain emotionally clear. In its leap from the particular to the expansively general, it reminded me of no less than the jump from Lola to Young Girls of Rochefort, to make a hyperbolic comparison. Looking at Mak's credits, I'm curious just how involved she was in Love in a Puff, which strikes me as significantly better than its sequel, Love in the Buff, which is credited to Pang and Luk Yee-sum. Mak gives us all the required elements of the romantic comedy, the declarations, the panic, the heartbreak and triumph, but with an intelligence and, yes dear, honesty that's hard to find in America these days. In many ways it feels more like a TV series than a movie, and I don't mean that as a negative. It's beautifully shot, the colors of Hong Kong as vibrant as ever (I'm still stunned she found a way to make the very familiar Hong Kong airport seem completely fresh in Ex), with the off-hand virtuosity which that most-photogenic city inspires apparent in every frame. She keeps her spaces stable and coherent, knowing just when to move in for a closer, more intimate effect (an early scene in a recording studio, a man and woman singing a terrible jingle for lemon juice, his voice in her ears as she stands at the microphone is as charged as anything I've seen this year). Rather, her story has the depth and resonance of a full season of very good TV, with at least eight fully-realized individual characters and enough story to fill 20 hours with ease. That she packs it all into a mere 118 minutes (there are two other versions, this length is her preferred "director's cut") is nothing short of remarkable.