Timecut was somewhat decent, till I watched Totally Killer. Not to compare, but since both are of the same genre and have similar plotline, it can't be helped.
Totally Killer was much better executed than Timecut, in all aspects - you don't really get who's the killer till the end & even then there are some twists, the main character has much more depth throughout the movie, there's a sensible ending with a good explanation of how the timeline altered, all put in a cute neat script.
On the other hand, the nostalgic soundtrack was the only saving grace for Timecut, but rest all felt pretty bland along with an underwhelming climax.