Walk on Water is a 2004 film directed by Eytan Fox. The film centers around a man named Eyal and his interactions and deals with a variety of issues, ranging from the complicated social climate between Israel and Germany to issues of homophobia and transphobia. Eyal is an assassin for the Israeli government, and he is good at it -- a generally cold, unfeeling type, he displays little other than an eagerness to get back to work after his wife commits suicide. This indifferent demeanor persists for a large portion of the story, but Eyal's character begins developing when he is reassigned to an entirely different mission by his superiors.

Rather than an assassination, this time Eyal is tasked to infiltrate the home of a former Nazi Germany leader, aiming to grow close to the old man by way of his grandchildren. Eyal, however, loses his objectivity and becomes close with the grandchildren, Pia and Axel. Axel, in particular, is an important foil for Eyal -- the characters are dynamic and oppose each other in nearly every conceivable way at first. Despite this, Eyal begins to bond with Axel, strugging over their differences. Not only do they contend with differences of race and religion, but sexuality, as well.

This nearly ends Eyal's relationship with the grandchildren as well as his mission entirely when he discovers Axel is gay -- Eyal attempts to withdraw from the mission for that reason, but is pressured to stay by his superiors. He learns that the mission is to be an assassination after all, and he is ordered to kill Axel and Pia's grandfather. When the opportunity arises to do so, however, Eyal is unable to make the kill, and he leaves the grandfather alive, only to have Axel finish the job. Axel is now likely aware of Eyal's original motives in befriending him and his sister, but Axel does not seem to care -- he values their friendship too deeply.

The most important development for Eyal is here -- prior to this moment, killing had become monotonous and easy for him. This eventually lead Eyal to his detachment from humanity and inability to sustain personal relationships (evidenced by his wife's suicide) but made assassination that much easier. Having forged a relationship with Pia and Axel, however, he finds his own humanity again, and can no longer view the grandfather as a target even though the man represents and worked for the Nazis themselves.

The film does an excellent job of presenting many as many complicated and deep issues as it does in so short a span of time, exemplifying these issues through the interactions of Eyal and Axel, two characters who begin viewing one another as complete opposites and eventually come to mutual understandings on both sides. Eyal's progression from cold-blooded killer to something far more human is conveyed through his interactions with Axel, Pia, and various other characters throughout the film.