Claim my passport

Hi my name is Ria
And i am Indonesian
I was brought here by 1 family to work at his house as house maid,and i came with visit visa
Im work for 2 months
And in 14 may i am runaway, because my male boss try to harrased me by force
When i runaway i leave my passport with him
And i am not go to police because i dont have any evidence to prove that man was try to that to me and he is a lawyer
The questions is , how i can get my passport back ? Remember i have no evidence , i have no prove , that house dont have any cctv and i am not with my mobile when the thing happen . But i really need my passport back
Thankyou