Credence finds Percival wondering around without his memories and decides to use him to get to Grindelwald (he basically uses his face to get to ppl who worked with Grindelwald!Graves and didn't get the memo that he got captured).

It is quite dangerous job and Graves is more and more sure that the young man who saved him from the street is something else than a friend from him forgotten past.

Credence trys to use Grindelwald's ways to seduce Graves and make him still work with him. The whole thing backfires when they fall in love.