臨頭

to befall / to be imminent

to face / to overlook / to arrive / to be (just) about to / just before

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns

to be facing imminent calamity (idiom) / disaster is looming

when things come to a head (idiom)

facing the end (idiom); at the end of one's life / with one foot in the grave

facing imminent catastrophe / calamity looms / all hell will break loose

Death is near at hand. (idiom)