Business executive Nick Porter starts an affair with landscape architect Holly while jogging on his way to see his half-brother Benjamin 'Ben' Goldman, a reclusive author who inherited an estate from his father, also an author. Recommended by Nick, Holly comes to renovate the garden for Ben, whose aloof attitude bugs her, but actually she's his first love. Nick learns this and that Ben has terminal cancer but refuses treatment, feeling his life has no meaning, so Nick pushes Holly to pretend to be in love with Ben, who learns the truth in the worst possible way at the worst possible time.
Unfortunately the movie Ein Sommer in Long Island is not yet available on HBO Max.
| Directing | Sibylle Tafel | Director |
| Writing | Jane Ainscough | Writer |
| Camera | Frank Lamm | Director of Photography |
| Production | Ariane Krampe | Producer |
| Production | Rita Nasser | Producer |
| Production | Moritz von Koss | Producer |
| Art | Ernie Seegers | Production Design |
| Sound | Karim Sebastian Elias | Music |
| Editing | Andreas Herzog | Editor |
| Art | Tom Olive | Set Decoration |
| Costume & Make-Up | Heidi Plätz | Costume Design |
| Costume & Make-Up | Sue Michael | Makeup Artist |
| Sound | Michael Stecher | Sound Mixer |
| Sound | Dieter Keck | Sound |
