It isn’t officially considered a war, even though it killed more Israelis than the Six-Day War of 1967. And no one can say exactly when it began or ended. The attacks picked up in the mid-1990s, as Israel pursued a peace deal and ceded land, but the worst came between 2000 and 2004. Though other forms of violence persist, the last Israeli fatality in a Palestinian suicide bombing was in 2008.

This repression of memory has helped the Palestinian leadership pretend that none of it ever happened, and few of the foreign journalists covering the country right now were here at the time. Why are moderate Israelis afraid to pull out of the West Bank? Why has the once-dominant left become a meager parliamentary remnant? Why is there a separation barrier? Why is the word “peace” pronounced with sarcasm while the word “security” carries a kind of supernatural weight? If you weren’t in Israel then and can’t access the national subconscious now, the answer will be elusive.

The film’s Ronen is the alter ego of Yossi Atia, 39, who plays him and wrote and co-directed the film. Mr. Atia, like me, lived through those years in Jerusalem as a college student. His character can’t bear the silence, or the feeling that he’s crazy for remembering, so he starts leading sightseeing tours of his own in the heart of the city: the Sbarro pizzeria, the place where two bombers exploded together near Zion Square, the vegetable market that got hit again and again.

He hands tourists old Nokia cellphones and has them simulate one of the period’s key rituals: the calls we used to make after attacks to tell our families we were O.K. It’s unclear if this is meant as education for the people he’s showing around, or therapy for him. He explains the odd social calculations that would follow an attack: If eight people, say, had just been killed on a bus, could you go out with a friend for a drink that evening? (Yes.) What if it was 12 people in a cafe? Could you go on a date? (No.) Ronen has an actual chart.

I remember those quandaries of terror etiquette, just as I remember standing at a bus stop when I heard a suicide bomber blow himself up and murder 11 people one street over, at Café Moment. My mother passed through the Nahariya train station right before a suicide bomber struck there, and my sister was in a cafeteria at the Hebrew University campus when Palestinians blew up a different cafeteria. I’ve got many more memories like that, all of them standard for the time.

When I spoke to Mr. Atia, he said he thought Israelis avoid the subject for an obvious reason: It’s too awful. Because the carnage wasn’t on a distant battlefield or limited to soldiers, the experience encompassed the whole society, and you don’t forget images or fear like that even if you’ve forced it all down to the murkiest layers of your brain. “It wasn’t a military war, it was a civil war, and the victims were civilians,” he said. His character, Ronen, wants to talk about it, and that makes him strange: “No one wants to listen.”