Touch has been green-lit for a second season, so it seems as though its policy of keeping the viewer as bewildered as main character Martin Bohm has paid off.

Ironically, given its foundation in numerical sequences, Touch leads with the heart rather than the head.

Even when its intricately interwoven storylines don’t all untangle themselves into happy endings, there remains something wonderfully life-affirming about Touch.

This exploration of the wonder and tragedy of serendipity is one of most poignant, affecting series that the US has produced in a long time.