Misfortunes seldom come singly.

泣きっ面に蜂(naki ttsurani hachi)

Other expressions

・When it rains, it pours.

・It’s a double whammy.

Meaning of 泣きっ面に蜂(naki ttsurani hachi)

Bad thing and misfortune pile up. you have bad things many times (again).

Ex)

・I broke up with my girlfriend then I lost my wallet while I was going home. it is naki ttsurani hachi.

・I had a car accident then my house was broken