Theseus enters the palace and sees Phaedra clutching a sword, ready to slay herself. He asks her why she is in such a state, but she responds only with vague allusions to a "sin" she has committed.
Entering the palace, Theseus notices Phaedra holding a sword, poised to kill herself. When he asks why she is so distraught, she merely hints at a "sin" she has done.