陷入

be immersed in debts; be stuck in the mire of debt

be bogged down in endless debates

be engulfed in misery

fall into a trap; be enmeshed in a plot; be caught in a snare

be reduced to privation/poverty; sink into poverty; be impoverished

fall into a quagmire

be caught in an ambush

get into hot water; be left high and dry; be put in a tight spot; be cornered; be trapped; get into a jam

abandon oneself to despair; lapse into a state of despair

land in a hopeless situation; get into extreme difficulty; be drawn into a hopeless situation

sink in depression

be in a tight corner; fall into difficult circumstances; get into an awkward position; get into a hole

sink to a state of chaos

fall into a stupor; lapse/sink into a coma

wallow in an emotional mire

be tightly encircled/besieged

be trapped into an unhappy marriage

abandon oneself to grief

be/get encircled; be besieged

fall in love

be deep/sunk/lost in reverie

lapse into a state of thought; sink into deep meditation

lapse into silence