The set up of Innuendo is that the heroine has left her religiously and sexually oppressive parents in her home in Finland, along with her favoured twin sister, for a life in Australia. Her past has rendered her a completely insular character, almost monosyballic, who repels or attacks almost all form of interaction.
Watching a character give nothing to anyone makes the film hard to stick with for a long time. I felt like I was getting nowhere, and not wondering 'Where is this going?' but 'Will this go anywhere?' Knowing so little of the backstory at this point, I didn't think Saara Lamberg's performance was giving me enough hint of what was hidden to hold my interest
Slowly, violence and weird fantasies start to creep in, and the film gathers more of a hold as it continues. Seeing more of the heroine on her own in more extreme situations, not just fobbing off all the other characters, also starts to suggest more her inner turmoil, which is the point of interest needed to focus everything.
There are some audacious scenes, painful and ominous and true scenes, and some strong performances. I think Lamberg is really good in multiple roles, it's just that for too long in the film, the screenplay (her own) keeps the character too barricaded. Ultimately Innuendo ends much stronger than it began, which is way better than the opposite, and has resonance. But much of it is a slog on the way to building to that point. Flawed but with value.