On the one hand, Excursion is highly original, but on the other, the acting and scripting of this film are mediocre. It's shot in an apartment in Shad Thames, and it has the unfortunate feel of a local drama group deciding to act out a novel script in someone's flat and basement. (Watch Hoshii Mamoru 'University of Laughs', if you want to see a master class in how a single setting film can work brilliantly, by the way). The acting settles down a bit half way through, but the former is needlessly snail paced even for the context. Some fans laud the interesting twist on time-travel and this is indeed a refreshing take that suitably steers clear of cheap and needless special effects. However, trying to follow the threads of the timeline and paradoxes will drive you 'loopy' and despite feeding into a clever catastrophic twist, it struggles to really make any clear sense of the tangled ball of time and events, unless as one of the protagonists says, that you pull on a thread and some of the knots sort themselves out. For me though, pulling on the threads just seems to tighten the knots of confusion.