A mute man is graced with the power to read minds. As he climbs the social ladder he struggles to work out his place in society.

What does he want to achieve with his gift? What's at stake if he fails? What's the price to be paid if he succeeds?

Silent Reader

The concept of a mute man who can read minds is a good one, combining a serious weakness/hurdle (being mute) with a power/gift - lots of potential with this set up. But the 2nd sentence is a bit nothing - climbing the social ladder and trying to find his place....sure, this should happen through the film, just like a character should improve, but it shouldn't be your logline. The logline should describe the action/conflict in which such change and soul searching can take place.

Perhaps the mute-mind-reader is tempted by criminals that want to use his powers?
Perhaps he has to overcome discrimination due to his disability?
Perhaps, like many a good story, he ultimate must realise his strength is not his mind reading power but a deeper inner humanity and ability to overcome?

Good luck!

It should be a comma not a full stop. You shouldn't have two sentences.