I'll Follow you down is a pure SCI-FI drama played in slow build up style.
Gabe is a brilliant scientist who mysteriously disappears one day after following a trip, leaving his wife and kid stranded, years goes by then a sudden discovery will give light to how and why Gabe (the father) disappeared in the most bizarre way.
That's the idea pretty much. The movie moves very very slowly at the beginning, so slow that it will test your resolve, the problem with the whole idea is not due to the script nor the actors, since both are top notch, but it's mainly on the slow development at first and a very dull soundtrack.
Yes, I blame the partial slow first part due to music, it is incredible uninspired and it is constantly there. You know what happens when you play music all the time, it tends to diminish the effect on the scenes and that's exactly what happens here.
No need to cancel the movie just yet, since after the first half, the movie starts to gain speed, the music follows through with more grace and then the outcome... which is BRILLIANT to say the least.
Acting is really superb and Haley Joel Osment is really the star on this movie, without him this would probably be a failure, he really puts into his character giving a superb work.
It's nice also to see Gillian Anderson acting after so many years of watching X-Files, she was one of my favorite characters and she does a very good job too.
All in all, even with the slow first half, the movie has an incredible redeeming second part and a brilliant ending, pure SCI-FI at it's best and totally recommended.
