A young couple do a staycation for their honeymoon, with a tent in their front room, and a ban on internet, phones etc. It gets harder before it works. Despite that description, I think there is never any doubt that the couple will work it out - although this knowledge (or assumption) doesn't work against the film at all.
The tone is mostly cute. Yes there are limits and hardships but they are presented without a feeling of despair or pressure, so they do not take the film away from being romantic and cute in its delivery. That said, at the same time the film manages to have that grounded realism which help it. The characters and their situation does feel real to them, and the tension between the two characters does feel like it is a real thing between two people limited on resources and experiencing individual tensions from it. The two actors make it work well, and they get the tone right - likeable and light, but with that edge throughout.
