Follow Her (2019)

An agent is assigned to follow Trudy Fenderson, a mysterious designer who turns out to not be what she seems. Agent Harry Henderson receives instructions to follow Trudy Fenderson, a mysterious designer. After briefly escaping Harry, it is revealed that Trudy is following someone else: timid Marty Mendelson. After being followed by Trudy, who is still being followed by Harry, Marty realizes the situation he is in. He makes a break for it, and the chase is on across a number of Chicago landmarks. During the chase, the participants begin to text each other and realize that they all know each other in some way. The chase reaches its' conclusion on a pier, with Harry, Trudy, and Marty at a stand-off. Before the moment can turn violent, they all receive a text from a mysterious number telling them to abort their missions. Harry, Trudy, and Marty all nod and go their separate ways.